Tutorials Posted by brooklyne
brooklyne from Univ. de Quebec a Montreal
brooklyne's Posted Tutorials
Bounty |
Category | Question | Tutorial | Purchases | Date Posted |
|---|---|---|---|---|---|
| $0.50 | Mathematics | (a) Write equations for cost per day c f | tutorial
...equations : see attached. O... | Jan 15, 2012 at 3:51:36PM | |
| $0.25 | Chemistry | write the balanced redox equation for the reaction of aqueous copper(I) and... | tutorial
... me know i... | Oct 24, 2011 at 8:23:58PM | |
| $0.50 | Chemistry | Calculate the number of moles of molecul | tutorial
...Hope th... | Sep. 30, 2011 at 03:49:17AM | |
| $0.25 | Mathematics | Basic math | tutorial
...you have a... | Sep 15, 2011 at 6:25:12PM | |
| $0.25 | Chemistry | an average person weighs 135 lbs. if th | 0.0108 (lbs) of selenium --- detailed solution inside
...(lbs) x 0.... | Aug 29, 2011 at 7:34:13PM | |
| $0.25 | Chemistry | there are about 3.0 L of blood plasma wi | 3.09 (kg) --- see detailed solution inside
...L) x 1000 (ml/L) = 3000 (mL) 3000 (mL) x 1.0... | Aug 29, 2011 at 7:25:28PM | |
| $0.25 | Mathematics | Word problem 18 | source 1 has 30% ; source 2 has 55%; see details inside
...l having 40% hydrocarbons. What are the percentages of hydrocarbons in the two sources? Step 1. Variables Let x = % hydrocarbons in first source Let y = % hydrocarbons in second source Step 2....... | Jun 22, 2011 at 5:22:58PM | |
| $0.25 | Mathematics | only for gettutor | tutorial
...me know if ... | Jun 04, 2011 at 4:57:00PM | |
| $1.00 | Chemistry | How many grams of iron oxide, Fe^2 O^3, | tutorial
...d, let me... | May 31, 2011 at 8:05:15PM | |
| $0.25 | Chemistry | Organic Chemistry | tutorial
...ee attach... | May 24, 2011 at 5:33:13PM | |
| $2.00 | Chemistry | Chemistry help 101 please!!! | tutorial
..., let me k... | May 11, 2011 at 9:28:36PM | |
| $1.00 | Chemistry | Chemistry | tutorial
...ttached; l... | May 11, 2011 at 8:18:35PM | |
| $1.00 | Chemistry | Chemistry Help! | 85 to 86
...see attach... | May 11, 2011 at 8:10:05PM | |
| $2.00 | Chemistry | Chemistry Help! | 81 to 84
...f you need... | May 11, 2011 at 7:47:52PM | |
| $2.00 | Chemistry | Chemistry! Help! | question 75 and 76 only (no 77)
... attached for questions 75 and 76. Pl... | May 11, 2011 at 7:04:05PM | |
| $0.50 | Mathematics | Summation- Need ASAP | tutorial
... helps you. ... | May 04, 2011 at 7:59:36PM | |
| $2.00 | Chemistry | Chemistry- Carboxylic acids and Esters | tutorial
...ed. Let m... | May 04, 2011 at 5:59:27PM | |
| $0.50 | Chemistry | chemistry-properties of Amines | tutorial
...e attache... | May 04, 2011 at 5:19:40PM | |
| $0.25 | Mathematics | Please help me understand this calculus question. | tutorial
...Let me kn... | May 03, 2011 at 10:03:40PM | |
| $0.25 | Mathematics | Please help me understand this calculus question. | tutorial
...e know if... | May 03, 2011 at 9:53:41PM | |
| $0.25 | Mathematics | Please help me understand this calculus question. | tutorial
...ee attac... | May 03, 2011 at 9:48:05PM | |
| $1.50 | Mathematics | Finding Slope From an Equation | tutorial
... you have questions. In simple words, always isolate y (make i... | May 03, 2011 at 8:57:16PM | |
| $0.25 | Chemistry | how many seconds are in a week? | 604800 seconds in a week (details inside)
...(week) x 7 (day... | May 03, 2011 at 5:41:51PM | |
| $0.50 | Mathematics | Please help me understand this calculus question. | tutorial
... scan. Let m... | May 03, 2011 at 5:36:28PM | |
| $0.25 | Mathematics | Complex Number | tutorial
...rial (roofer... | May 02, 2011 at 10:23:39PM | |
| $0.25 | Mathematics | Squared and Cubed | reposting : ROOFING house tutorial
...this... | May 02, 2011 at 9:45:58PM | |
| $0.25 | Mathematics | Squared and Cubed | roofer problem
...attached ... | May 02, 2011 at 9:34:55PM | |
| $0.25 | Chemistry | The concentration of hydronium ions in a | Answer: 2.6 x 10^-11 M (details inside)
...[H 3O +] x [OH -] = 1 x 10 -14 M 2 Also : [OH -] = (1 x 10... | May 02, 2011 at 8:10:35PM | |
| $0.25 | Mathematics | Squared and Cubed | tutorial
...estion right or ... | May 02, 2011 at 8:03:35PM | |
| $0.25 | Mathematics | The slope of the tangent line of a curve | tutorial
...egrating the slope is doing the a... | Apr 28, 2011 at 9:25:40PM | |
| $0.25 | Mathematics | use the definite integral to find the ar | tutorial
... know if ... | Apr 28, 2011 at 9:15:19PM | |
| $0.25 | Chemistry | What would be the equation for the NaOH | tutorial
... + 3 NaOH = C 3H 5(OH) 3 + 3... | Apr 26, 2011 at 6:29:34PM | |
| $0.25 | Mathematics | A pharmacist has a 15% acid solution and | tutorial
... This will allow their sum to be : x + (50 - x) = 50 ml of volume. Step 2) Write equation system 15% = 0.15 25% = 0.25 21%... | Apr 22, 2011 at 3:22:25PM | |
| $0.50 | Mathematics | The correlation between respiratory rate | tutorial
...tached tutorial,... | Apr 20, 2011 at 9:44:19PM | |
| $0.25 | Chemistry | Chemistry Help, really important | tutorial
...resents the number of electron. Hence total electron is found by adding the third digit of each : 2+2+6+2+6 = 18 Step 2) Cation +1 The question says that this... | Apr 20, 2011 at 9:11:00PM | |
| $0.25 | Chemistry | density of a gas at room temperature is | answer : 51.3 g/mol (see detailed solution inside)
... -1 .K -1 T = temperature in Kelvin D =... | Apr 11, 2011 at 7:58:18PM | |
| $0.25 | Chemistry | Which sub-atomic particle has no electri | answer : neutron (no electrical charge)
...Proton is charged po... | Apr 11, 2011 at 7:43:53PM | |
| $0.25 | Chemistry | How do you get from grams to atoms | Atoms = Avogadro x (mass in gram / molar mass in gram per mol)
...s where Avogadro = 6.02 x 10^23 atoms/mol Hence t... | Apr 05, 2011 at 10:01:14PM | |
| $0.25 | Mathematics | sin theta=((2) square root 6)/5, tan theta <0 | tutorial
...rial you need... | Mar 20, 2011 at 10:19:31PM | |
| $0.25 | Mathematics | Exponential equation | answer: y = 10^(0.4343x) [see detailed solution inside]
... exponent of a log becomes its coefficient : log y = x log e 3) Put in your calculator "l... | Mar 15, 2011 at 8:40:12PM | |
| $1.50 | Engineering | Four Qs for logarithms and series | Q19 and Q20
...hed is ... | Mar 15, 2011 at 8:29:10PM | |
| $1.00 | Engineering | Four Qs for logarithms and series | Q17 and Q18
...for Q17... | Mar 15, 2011 at 8:26:37PM | |
| $0.25 | Mathematics | Trigonometric equations and identities | Q1 to Q4 (let me know if you want me to work on the rest)
...d is a tutorial... | Mar 14, 2011 at 10:32:03PM | |
| $0.25 | Chemistry | concentration of ions | tutorial
...nal) = mol / V (final) = 0.018 mol / 0.0800 (L) = 0.22 (mol/L) 3a) initial Ca(2+) ions : mol = C (initial) x V (initial) = 0.50 (mol/L) x 0.030 (L) = 0.015 mol Ca(2+) 3b) final concentration Ca(2+)...... | Mar 14, 2011 at 8:28:59PM | |
| $0.25 | Chemistry | chemistry problem | answer: 6.8 grams ; see step-by-step solution inside
...see step-b... | Feb 26, 2011 at 2:23:23PM | |
| $0.25 | Chemistry | microbilolcy | these are oxidations (no tutorial inside)
...e to give aldehydes or ket... | Jan 30, 2011 at 3:04:31PM | |
| $0.25 | Chemistry | elements ,mixtures and compounds | A compound is a molecule that contains at least two different elements, example HNO3.
...ns at least two different elements, example HNO 3. All compounds are molecules but not all molecule... | Jan 29, 2011 at 1:27:08PM | |
| $0.25 | Chemistry | Chemistry College | answer: 12.2 kJ (see detailed solution inside)
.... For water, it is 6.02 kJ/mol. Your question : How much energy, in kJ, is needed to melt 36.5 g of water at... | Jan 27, 2011 at 9:01:14PM | |
| $0.25 | Mathematics | 1. Identifica si el par ordenado es una solución al sistema dado. a) 4x – 3y =... | tutorial
...na solución al sistema  b) (-4, -3) : x = -4 ; y = -3  2x – 3y ... | Jan 26, 2011 at 11:07:09PM | |
| $0.25 | Chemistry | LABEL THE EARTHS CRUST | earth crust
...you. Let me kn... | Jan 26, 2011 at 10:56:18PM | |
| $0.25 | Chemistry | preparing chemistry solutions | tutorial
...ched. Let... | Jan 26, 2011 at 7:49:27PM | |
| $0.25 | Biology | a skeletal system in an animals body is needed for | answer: locomotion
... humans, locomotion (the ability to move from one plac... | Jan 18, 2011 at 6:33:35PM | |
| $0.25 | Mathematics | fraction eqivalent to 0.625? | answer : 5/8 (details inside)
...thousandth. 0.625 = 625 / 1000 Step 2. After you divide ... | Jan 14, 2011 at 10:00:00PM | |
| $0.25 | Mathematics | you have two summer jobs. in the first h | 9 hours at second job (detailed solution inside)
... per week. how many hours must your work at the second job? step 1. First job pay pay = hours x hourly wage pay = 2... | Jan 11, 2011 at 9:42:40PM | |
| $0.25 | Mathematics | whats the anwser to this math problem? 5 | answer: 8x+7
...ke terms: 5x... | Jan 09, 2011 at 9:32:08PM | |
| $0.25 | Mathematics | whats the anwser to this math problem? 5 | 5x-3+2x+10+x= 8x +7
...= Combine li... | Jan 09, 2011 at 9:30:30PM | |
| $0.25 | Chemistry | convert 5.20 x 10^24 molecules of H2O2 i | Answer : 294 g of H2O2 (detailed solution inside)
...23 (molecules per mol) = 8.64 moles Step 2. Molar mass of H2O2 Use periodic tabl... | Jan 09, 2011 at 8:04:15PM | |
| $0.25 | Chemistry | how many molecules are there in .45 mol | Answer : 2.7E23 molecules (detailed solution inside)
... Then 0.45 mol would contain : 0.45 mol x 6.0... | Jan 09, 2011 at 7:59:32PM | |
| $0.25 | Biology | need help | tutorial: endocrine glands, hormones, and functions
... you complete your assignment. Let me... | Jan 05, 2011 at 9:52:06PM | |
| $0.25 | Chemistry | ___K(s) + ___H2O(l) ___KOH(aq) + H2(g) What are the products in this... | 2K(s) + 2H2O(l) = 2KOH(aq) + H2(g) where products are KOH and H2
...at is not balanced? In the equation ___K(s) + ___H2O(l) = ___KOH(aq) + H2(g) we see that H is not balanced, let's balance H by putt... | Jan 04, 2011 at 9:53:08PM | |
| $0.25 | Chemistry | ___K(s) + ___H2O(l) ___KOH(aq) + H2(g) What are the products in this... | 2K(s) + 2H2O(l) = 2KOH(aq) + H2(g) where products are KOH and H2
...itial equation, what is not balanced? In the equation ___K(s) + ___H2O(l) = ___KOH(aq) + H2(g) we see that H is not balanced, let... | Jan 04, 2011 at 9:52:26PM | |
| $0.25 | Chemistry | Please help me answer this Organic Chemistry question. | methyl esterification of the COOH into COOMe
...OH group that may ester... | Dec 31, 2010 at 1:35:12PM | |
| $0.25 | Chemistry | Please help me answer this Pharmaceutical Analsysis question. | chromophore: naphtalene ; auxochrome: methoxy at position#6
...oxynaphthalen-2-yl)propanoic acid. Chromophore is any conjugated system, i... | Dec. 31, 2010 at 11:25:19AM | |
| $3.50 | Chemistry | Tutor for Chemistry Specific Heat | Specific heat report
... stuff. This should have no m... | Dec 27, 2010 at 11:02:59PM | |
| $0.25 | Chemistry | Stoichimetry | answer: 42.74g of CO (6-step detailed solution inside)
...nswer: 42.74g of... | Dec. 27, 2010 at 11:52:47AM | |
| $0.25 | Business | help me know the exact source of this book | I sent you a message (do not pay for this question)
...nt you a m... | Dec. 26, 2010 at 04:31:58AM | |
| $0.25 | Communications | Technical Writting | answers and tutorial
...ical writing. objective because it's a fact c. The patient seemed angry, probably because of something that happened on the way to the office. subjective because it's an opinion d. The temperature...... | Dec. 26, 2010 at 02:00:28AM | |
| $0.25 | Mathematics | Simlify Radical Algebra Expressions | tutorials
... att... | Dec. 23, 2010 at 11:49:47AM | |
| $0.25 | Mathematics | Please help with word problem | Ages : rita is 38, lenny is 19, and tony is 15. (solution inside)
... age is 20, then this is twice the age of lenny, so lenny is 20/2 = 10. In other words, if Rita's age is x, then lenny's age is x/2. Lenny is 4 years older than Tony. Continuing w... | Dec 22, 2010 at 12:32:56PM | |
| $0.25 | Mathematics | if x>2, then xsquare minus x minus6/x sq | answer : > -5 (details inside)
...wer : ... | Dec. 22, 2010 at 11:15:38AM | |
| $0.25 | Mathematics | Find derivative of 3ln(t)/t^5 and derivative of sin (5x^4+ 2x) | detailed solution to derivative exercises
...vative... | Dec. 21, 2010 at 09:49:34AM | |
| $0.25 | Mathematics | Help with business formula | r = I - sqrt(A/Ao) [see details inside]
.../Ao=(l-r) 2 ... | Dec 19, 2010 at 7:22:53PM | |
| $0.25 | Mathematics | help me set up this problem to graph it. | inequality graphing
...STep 2. Graphing the inequality y This is easier than it seems. Just look at your graph at step 1, choose one point that is NOT on ... | Dec 17, 2010 at 6:21:19PM | |
| $0.25 | Mathematics | algebra word problem | After 40 mins. (details inside)
...both providers' cost to equal: set "verizon cost" = "att cost" 30 + 0.39x = 25.99 + 0.49x Solve for x : 4.01 = 0.1x 40.1 = x This means that after talking 40 minutes, then we will pay the same...... | Dec 16, 2010 at 10:32:31PM | |
| $0.25 | Mathematics | Please show me how to figure this out. | x = 0 and x = -2 (details inside)
...ctorable, so we get : (2x) (x+2) (x 2 - 2x + 4) = 0 Step 3. Let's zero each of the factor and... | Dec 16, 2010 at 10:11:00PM | |
| $0.25 | Mathematics | Please show me how to figure this out. | x = 0 and x = -2 (details inside)
...ep 2. The term (x 3 + 8) is a sum of cube and is factorable, so we get : (2x) (x+2) (x 2 - 2x ... | Dec 16, 2010 at 10:09:45PM | |
| $1.50 | Mathematics | Help with College Algebra | precal tutorial
...al a... | Dec 16, 2010 at 9:55:03PM | |
| $0.25 | Mathematics | How many 5/8 can go into 22 1/4? | 35.6 times (or 178/5) --- see details inside
... times (o... | Dec 16, 2010 at 12:57:43PM | |
| $0.25 | Chemistry | which of the following is not a physical change a)hammering a spike through a... | c is the answer
...l properties change, but the matter retains its identity—its composition. On the other hand, changes that al... | Dec 16, 2010 at 12:48:57PM | |
| $3.50 | Mathematics | Please help with my Pre-Calculous Homework | precal tutorial
...e at... | Dec 16, 2010 at 12:33:00PM | |
| $1.00 | Mathematics | Cosine graph? | cosine tutorial
...osine... | Dec. 16, 2010 at 12:01:36AM | |
| $1.00 | Mathematics | Cosine graphing?? | cosine tutorial
... your cos... | Dec 15, 2010 at 11:28:23PM | |
| $0.25 | Mathematics | Algebra/Geometry Help! | geometry tutorial
...l for your ... | Dec 15, 2010 at 10:17:29PM | |
| $0.25 | Mathematics | Algebra Question | domain : [-1.41 , 1.41] ---see details inside
...sin cancel each other , so let's do sin on both sides : sin f(x) = sin arc sin (x2-1) since sin and arc sin cancel each other we get : sin f(x) = ... | Dec 15, 2010 at 3:49:43PM | |
| $0.25 | General-Questions | i need help with this math homework | answer is c (details inside)
... 4 weeks, a number of hours ranging from 32 hours to 48 hours. Hence we will eliminate the answers that say "exactly" because there is no "exact" answer, but a "range" of answer. This means... | Dec 14, 2010 at 10:06:41PM | |
| $0.25 | Biology | closely stacked,flattened sacs(plants only) | Golgi body
...e plates stacked one on top of the other. This organe... | Dec 14, 2010 at 9:28:12PM | |
| $0.25 | Biology | NEED HELP | brief slide on lysosomes
...lide on lysosom... | Dec 14, 2010 at 8:02:34PM | |
| $0.25 | Mathematics | Help me write this equation in point-slope form. | y - 8 = -2 (x + 1) (details inside)
...the ordered pair is (-1,8). The equation form is y-y1=m(x-x1). Answer : slope = -2 = m ... | Dec 14, 2010 at 7:25:32PM | |
| $0.25 | Mathematics | The area of the wall you are going to pa | height = 10 ft and width = 5 ft ; details inside
... a rectangle’s area. area of a rectangle = width * height 3. Substitute the values from step 1 and the original problem into the area formula. area of a rectangle = width * height area of a...... | Dec 14, 2010 at 7:12:46PM | |
| $0.25 | Mathematics | I need help proving this math problem: s | proof
...see tuto... | Dec 14, 2010 at 5:13:35PM | |
| $0.25 | Mathematics | Help to find the function rule for this | y = -2 x + 54
...atta... | Dec 13, 2010 at 9:42:44PM | |
| $0.25 | Physics | A force of 20N is directed at an angle o | vector
...For vectors, we add the x and y components. Setp 2. Force of 20 N at angle of 60 degrees: x - component is 20xcos(60) = 10N ... | Dec 13, 2010 at 12:10:24PM | |
| $0.25 | Mathematics | how many cups are in 2 gallons | 32 cups = 2 US gallons
... / 0.0625 = 32 cups cups ... | Dec. 13, 2010 at 11:56:45AM | |
| $0.25 | Mathematics | how many cups are in 2 gallons | 32 cups = 2 US gallons
...s cups to gallons : 1 C... | Dec. 13, 2010 at 11:56:17AM | |
| $0.25 | Mathematics | how many cups are in 2 gallons | 32 cups = 2 US gallons
...s cups to gallons : 1... | Dec. 13, 2010 at 11:54:18AM | |
| $0.25 | Mathematics | Optimization Using Newton's Method | answer :( 0.53 , 0.28 ) [solution inside]
...[solutio... | Dec 12, 2010 at 11:10:03PM | |
| $0.25 | Mathematics | What is the radius of a cylinder of the | radius is 2 inches (details inside)
...inches ... | Dec 12, 2010 at 11:03:48PM | |
| $0.25 | Mathematics | word problem | sides are 500, 900, and 1000 feet. (details inside)
...e 500, 900... | Dec 12, 2010 at 10:31:14PM | |
| $0.25 | Mathematics | Secant graph? | secant tutorial attached
...tori... | Dec 12, 2010 at 10:25:44PM | |
| $0.25 | Mathematics | Cotangent graph? | cotangent tutorial attached
...cotan... | Dec 12, 2010 at 10:24:38PM | |
| $0.25 | Mathematics | Secant graph? | secant tutorial attached
...ched ... | Dec 12, 2010 at 10:11:06PM | |
| $0.25 | Mathematics | Cotangent graph? | cotangent tutorial attached
...hed for... | Dec 12, 2010 at 9:54:49PM | |
| $0.25 | Mathematics | Help me understand this math problem: Fi | downward parabola, equation : x^2 = -8(y-2)
...us (0,0) which means at the origin, and the directrix is at y=4 which is a horizontal. If directrix is horizontal, them parabola is always "up/downward". Note that... | Dec 12, 2010 at 8:02:59PM | |
| $0.25 | Mathematics | translating sentences into equations | answers: 110 and 190 dollars (details inside)
...he time in hours C (n) is the cost in dollars 1.... | Dec 12, 2010 at 7:37:59PM | |
| $0.25 | Mathematics | Find the point on the graph of f(x) = x^2... | answer :( 0.53 , 0.28 ) [solution inside]
...d tu... | Dec 12, 2010 at 4:42:58PM | |
| $0.25 | Mathematics | Find the point on the graph... | answer :( 0.53 , 0.28 ) [solution inside]
...tach... | Dec 12, 2010 at 4:41:45PM | |
| $5.00 | Mathematics | Math 209 Problems | tutorial to exercises
... att... | Dec 12, 2010 at 3:07:33PM | |
| $0.25 | Mathematics | Please respond as soon as possible i really need help. | I can help u understand prepare, but wont sell the exam like math_tutor did. Dont do that. (no tutorial in this post)
... math_tutor did. Dont d... | Dec 12, 2010 at 12:27:23PM | |
| $0.25 | Mathematics | The width of a rectangle is 40% | 15 m x 6 m (see solution inside)
...15 m x... | Dec. 12, 2010 at 09:45:39AM | |
| $0.25 | General-Questions | Does anyone know how to issue a refund to someone? | dont pay for that! go to http://studentoffortune.com/cgi/contact then select other -other, write them an email, easy!
...n't pay for that! go to... | Dec. 12, 2010 at 12:02:16AM | |
| $0.50 | Mathematics | MTH 209 - Exercies Problem | negative exponents are made positive by flipping fraction upside-down
...ositive by flippin... | Dec 11, 2010 at 11:20:03PM | |
| $2.00 | Mathematics | which one should I chose | Option 1 would make us richer. See attached.
...ters are too small, ... | Dec 11, 2010 at 12:58:36PM | |
| $0.25 | Chemistry | Explain the effect of temperature on reaction rate using the Maxwell-Boltzmann... | Reaction rate increases with temperature, and rate roughly doubles for every 10 degrees rise in temperature. See attach.
...bles for every 10 degree... | Dec 11, 2010 at 12:28:09PM | |
| $2.00 | Mathematics | which one should I chose II | Option 1 would make us richer. See attached.
...r. See attached. If ... | Dec 11, 2010 at 12:15:43PM | |
| $0.25 | Mathematics | How to solve or expand logarithmic equations. | dont expand, collapse the logs instead, answer : x = 2 (solution inside)
...he logs, collap... | Dec 10, 2010 at 8:31:02PM | |
| $3.00 | Mathematics | MTH 209 - Exercises | factoring solutions
...factori... | Dec 10, 2010 at 4:28:24PM | |
| $0.25 | Mathematics | Help Math one question please and thanks | profit
...for you... | Dec 10, 2010 at 4:05:11PM | |
| $0.25 | Mathematics | solve | number can be either 7 or -8. (solution inside)
...= 0 step 5. solve by factoring : (x-7)(x+8) = 0 step 6. zero each factor : x - 7 =... | Dec 10, 2010 at 3:23:28PM | |
| $2.00 | Chemistry | For each pair of compounds, pick the one | vapor pressure
...than CH3OH (contains hydrogen bond). In general, compounds with hi... | Dec 09, 2010 at 5:16:46PM | |
| $2.00 | Chemistry | This reaction is first order in N2O5: N2 | first order
...ate = k [N2O5] rate =... | Dec 09, 2010 at 4:59:19PM | |
| $2.00 | Chemistry | A reaction on which A, B, and C react to | rate law
...[C] 2 then it is independent of [A] , which means if concentration of A is... | Dec 09, 2010 at 4:55:51PM | |
| $0.25 | Chemistry | 62.An experiment shows that a 113-mL ga | molar mass of unknown
...known ... | Dec. 09, 2010 at 11:15:11AM | |
| $2.00 | Chemistry | An ethylene glycol solution contains 21. | ethylene glycol
...or exerc... | Dec. 09, 2010 at 11:09:11AM | |
| $2.00 | Chemistry | You can purchase hydrochloric acid in a | HCl prep
...see ... | Dec. 09, 2010 at 10:47:39AM | |
| $0.25 | Chemistry | Ammonium nitrate decomposes explosively | 2250 liters of gas (solution inside)
...f gas (... | Dec 08, 2010 at 11:54:49PM | |
| $0.25 | Chemistry | Lithium reacts with nitrogen gas accordi | 0.109 g lithium (solution inside)
...ium (s... | Dec 08, 2010 at 11:44:47PM | |
| $0.25 | Chemistry | Oxygen gas reacts with powdered aluminum | 35.1 liters (solution inside)
...35.1 ... | Dec 08, 2010 at 11:34:06PM | |
| $0.25 | Chemistry | A syringe containing 1.55 mL of oxygen g | 1.15 ml (solution inside)
...oluti... | Dec 08, 2010 at 11:15:55PM | |
| $0.25 | Chemistry | A sample of N2O gas has a density of 2. | 1204 mmHg (solution inside)
...lutio... | Dec 08, 2010 at 11:11:21PM | |
| $0.25 | Chemistry | What is the volume occupied by 12.5g of | a) 7.88 liters ; b) yes, volume would be different (details inside)
...s, volume wou... | Dec 08, 2010 at 11:04:54PM | |
| $0.25 | Chemistry | The pressure on top of Mt. Everest avera | 235 torr ; 9.25 in Hg ; 0.309 atm (detailed solution inside)
...ng and dividing properly : a) 235 (mmHg) x 760 (torr) / 760 (mmHg) = 235 torr c) 235 (mmHg)... | Dec 08, 2010 at 10:42:15PM | |
| $0.25 | Chemistry | A sample of gas has and initial volume o | P2 = 1.65 atm (solution inside)
... 2 = P1V1/V2 P 2 = (1.22 atm)(13.9L)/(10.3L)... | Dec 08, 2010 at 10:33:18PM | |
| $0.25 | Mathematics | please solve these for me | ln log
... ln ex... | Dec 08, 2010 at 10:20:19PM | |
| $2.00 | Chemistry | what happends to the electrons in a molecular compound> | molecular = covalent = electron sharing
...n that act between the nuclei and electrons of two or more atoms. Unlike ionic bonding, in which electrons behave as if they are transferred from one atom to another, covalent bonding involves the...... | Dec 08, 2010 at 9:32:25PM | |
| $1.00 | Chemistry | Explain what is required to create a buf | solution to buffer preparation
...u a annex NOT authored by myself, titled "desired pH", but which I think explains the concept quite well. The first attachment, tit... | Dec. 08, 2010 at 11:04:27AM | |
| $0.25 | Chemistry | A 1.00L volume of buffer is made with co | solution to buffer exercise
... attached... | Dec. 08, 2010 at 09:43:44AM | |
| $2.00 | Chemistry | Given 0.300 L of a buffer solution that | detailed solution to buffer exercise
... if you h... | Dec. 08, 2010 at 09:24:15AM | |
| $1.00 | Chemistry | Given 0.300 L of a buffer solution that | detailed solution to buffer exercise
...et me know if you have... | Dec. 08, 2010 at 09:22:40AM | |
| $1.00 | Chemistry | The much abused drug cocaine is an alkal | Kb = 2.64 x 10^(-6) ---- see solution inside
... x 10^(-6... | Dec. 08, 2010 at 01:34:19AM | |
| $2.00 | Chemistry | Acetylsalicylic Acid, HC9H704, is the ac | pH = 2.65 (solutions inside)
... = 2.... | Dec. 08, 2010 at 01:00:54AM | |
| $0.25 | Chemistry | The much abused drug cocaine is an alkal | Kb = 2.64 x 10^(-6) ---- see solution inside
... ---- se... | Dec. 08, 2010 at 12:39:54AM | |
| $0.25 | Chemistry | If 535 mL of gaseous HCl at 26.5 C and 7 | pH = 1.42 (solution inside)
... of the solu... | Dec. 08, 2010 at 12:07:14AM | |
| $2.00 | Biology | where in the cell does aerobic respiration take place? | in the mitochondria
...P. How does anaerobic respiration differ from aerobic respiration? Anaerobic respir... | Dec 07, 2010 at 11:20:50PM | |
| $0.25 | Mathematics | How do you solve the equation 6x=4x+36 | x = 18 (solutions inside)
...ere we can subtract 4x from both si... | Dec 07, 2010 at 9:48:28PM | |
| $0.25 | Chemistry | 10q+15n=49 solve for q | q = (49-15n)/10
...tract it from both sides 10q + 15n - 15n = 49 - 15n 10q... | Dec 07, 2010 at 9:44:44PM | |
| $0.25 | Chemistry | Need help | balanced equations
...stion on how to do any of them, let me know and I can clarify. Othe... | Dec 07, 2010 at 9:41:29PM | |
| $0.50 | Chemistry | when calcium carbonate is heated it deco | 2.99 liters (solution inside)
...s, mol, temperature, an... | Dec 07, 2010 at 6:12:05PM | |
| $5.00 | Chemistry | Please help me answer this Organic Chemistry question. | ozonolysis
... I did it for all ... | Dec 07, 2010 at 5:57:50PM | |
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... pay f... | Dec. 07, 2010 at 08:41:01AM | |
| $0.75 | Chemistry | for BROOKLYNE: please help me with buffers thank you! | pH of buffer
...re for part B. Let me know if ... | Dec 06, 2010 at 9:51:14PM | |
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...ve time to fin... | Dec 06, 2010 at 4:06:41PM | |
| $1.00 | Mathematics | Trigonometry | trig homework with detailed solutions
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| $2.00 | Mathematics | whats the inequality of d-5>-7 | answer: d>-2 (details inside)
... the fives on ... | Dec 05, 2010 at 10:31:35PM | |
| $0.25 | Mathematics | I need help with one algebra problem abo | the first function is best (detail inside)
... list of possibilities. Second, if you plug in the point (2,0), you see that both the second and fourth choices will need to be eliminated, because when x = 2 , then only the first function gives...... | Dec 05, 2010 at 10:25:58PM | |
| $2.00 | Chemistry | Psuedoephedrine hydrochloride C10H6CINO is a nasal decongestant that used to be... | 9.43 x 10^19 molecules (solution inside)
...Step 1. Find molar mass of C10H6ClNO. Use periodic table : 10x(mass of C) + 6x(mass of H) + (mass of N) + (mass ... | Dec 04, 2010 at 2:32:40PM | |
| $2.00 | Chemistry | finding molecules | 5.59 x 10^19 molecules (solution inside)
...ol) mole = 9.28 E -5 (keep 3 significant figures) Step 3. Find molecules using Avogadro... | Dec 04, 2010 at 2:25:36PM | |
| $2.00 | Mathematics | 5^(-2)=1/25 convert to log form | LOG5(1/25)= -2 (just set it as log base [result] = exponent)
...sult) = exp... | Dec 04, 2010 at 12:37:04PM | |
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...see attached for... | Dec. 04, 2010 at 09:25:34AM | |
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...)-(6)(2)(3) ... | Dec. 04, 2010 at 12:29:54AM | |
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... solution... | Dec 03, 2010 at 11:17:36PM | |
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...0.5pi.k)... | Dec 03, 2010 at 5:44:11PM | |
| $2.00 | Chemistry | Please help me answer this Chemistry question. | may be ... Acetic acid hydroxy-(4-methoxy-phenyl)-methyl ester ? NOT SURE
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...5 mL". Then the error is : error = absolute value of (mea... | Dec 02, 2010 at 2:39:46PM | |
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| $2.00 | Mathematics | Algebra | quadratic
... x = 0 into the equation, we get : ax 2 + bx + c a(0) 2 + b(0) + c 0 + 0 + c = c This means, when x = 0 (y-intercept), there can ... | Dec 02, 2010 at 12:09:23PM | |
| $25.00 | Mathematics | For brooklyne only | functions - tutorial
... as an imag... | Dec. 02, 2010 at 02:43:20AM | |
| $2.00 | Mathematics | i need assistance with this word problem | questions B C (A is ambiguous) -- I used derivatives (not sure if you learnt that yet in school?)
...ly want the area of the garden to be 9450 square feet , what will the dimensions need to be? what will the perimeter be? 300W - 2W 2 = area 300W - 2W 2 = 9450 - 2W 2 + 300W - 9450 = 0 Step 4....... | Dec 01, 2010 at 11:34:10PM | |
| $0.50 | Mathematics | Need helping finding (f o g)(x) and (g o f) | f o g and g o f
... all real numbers except x = 6 2. f(x)=4x 2+2x+8 and g(x)=x+5 2a) (f o g)(x) means "f" after "g" so it means we do "g" first Step 1. We start with g(x) = x+5 Step 2. We do (f o g) by plugging "x+5"...... | Dec 01, 2010 at 10:49:52PM | |
| $2.00 | Biology | What kind of work does an Molecular Biologist do | molecular biologist
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| $2.00 | Chemistry | CHEMISTRY | 8.7E24 atoms O ( solution inside)
...les (NH 4) 3PO 4 will contain 3.6x4 = 14.4 moles ... | Dec 01, 2010 at 2:52:53PM | |
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...attached tutorial. Whe... | Dec 01, 2010 at 2:48:08PM | |
| $2.00 | Mathematics | an algebra word problem tha I could use some help with | 8000 in MM and 16000 in CD (solution inside)
...est 8000 in M... | Dec 01, 2010 at 1:24:59PM | |
| $2.00 | Mathematics | convert each of the angle measures from | degree to radian
...ian values. For 90 degrees, we have 90 x (pi/180) = pi/2 radians For -15 deg... | Dec. 01, 2010 at 09:33:07AM | |
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...rsion forces form between non-polar molecules. They cause molecules t... | Nov 30, 2010 at 10:42:22PM | |
| $2.00 | Mathematics | h(x)=35+7x, k(x)=x-5, what is h(k(4))? | answer = 28 ; solution inside
...: plug x = 4 in k(x) k(x) = x - 5 = 4 - 5 = ... | Nov 30, 2010 at 9:59:57PM | |
| $0.25 | Chemistry | Please help me answer this Chemistry question. | nucleophilicity
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| $2.00 | Mathematics | 119 is 34% of what number | number is 350 (solution inside)
...= 0.34x Step 2. Solve : Di... | Nov 30, 2010 at 12:33:05PM | |
| $2.00 | Mathematics | The product of two consecutive odd integ | integers are -3 and -1 ; see detailed solution inside
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| $2.00 | Mathematics | algebra factoring | x = -2 and x = 3.5 (see solution inside)
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| $2.00 | Mathematics | algebra factoring | height = 7 ft ; solution included
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...s at 55 miles per hour and gets 11 kilometers per liter of gasoline. How many gallons of gasoline are needed for a 3.0 hour trip? 55... | Nov 29, 2010 at 11:19:11PM | |
| $1.00 | Chemistry | for BROOKLYNE: please help me with buffers thank you! | buffer exercises
...tutorial, but when I was uploading it, I n... | Nov 29, 2010 at 8:47:56PM | |
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...Please see ... | Nov 29, 2010 at 3:41:06PM | |
| $2.00 | Mathematics | Non Functions | non-function
... relation is not a function if any x contains more than one y. For example, see t... | Nov 29, 2010 at 12:38:43PM | |
| $2.00 | Mathematics | 200,000,000,000,000 | 200 000 000 000 000 = 2E14
... 000 would become 2E14. ... | Nov 29, 2010 at 12:06:01PM | |
| $2.00 | Mathematics | what is 517,000 in scientific notation? | 517 000 = 5.17E5
...000 is giv... | Nov. 29, 2010 at 11:57:58AM | |
| $2.00 | Mathematics | A turkey was flying for six hours at an | The turkey flew at 8 km/h during the last four hours of its trip.
...ring the first two hours of the trip is 22 km. Step 3. The distance flewn during the remainder of the trip (last four hours) would be 54-22 = 32 km. Step 4. h... | Nov 28, 2010 at 9:28:11PM | |
| $2.00 | Mathematics | how many pounds of candy selling for $ 1 | 3 pounds of candy (for $1.75 a pound)
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...rite biology book. In summary: The end result of mitosis is two... | Nov 27, 2010 at 9:58:00PM | |
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...attac... | Nov 24, 2010 at 1:47:37PM | |
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...rom SUNLIGHT to convert the c... | Nov 24, 2010 at 1:22:02PM | |
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... ; scie... | Nov 21, 2010 at 6:00:25PM | |
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...r the solution... | Nov 20, 2010 at 8:34:06PM | |
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... equations so as to eliminate y: x+-7x+y-y=5+5 3. Simplify: -6x=10 ... | Nov 20, 2010 at 6:26:56PM | |
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...in this case), and we use the periodic table to find the element (P in th... | Nov 18, 2010 at 10:08:49PM | |
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... for CO2, we add C + O + O , and we get 44.01 g... | Nov 18, 2010 at 9:57:50PM | |
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...irst compound contains a free e... | Nov. 17, 2010 at 11:41:19AM | |
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...d, base, or salt, and from there, you can tell w... | Nov. 17, 2010 at 11:32:56AM | |
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...ions 3 and 4, y... | Nov 16, 2010 at 11:36:22PM | |
| $0.50 | Chemistry | CHEMISTRY EXPERTS: Need help with acids/bases | Questions 1 and 2
...u need to answer questions 1 and 2 in my tutorial. For question 1, the higher Ka, the hi... | Nov 16, 2010 at 10:41:19PM | |
| $2.00 | Chemistry | Analysis of Cations | Cations present: Ag+,Hg+,NH4+ and anions present: Cl-
...Ag+,Hg+,NH... | Nov 15, 2010 at 11:13:15PM | |
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...(-4/3) = x 2^[(3)(-4/3)]... | Nov 15, 2010 at 8:30:59PM | |
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...our last l... | Nov 15, 2010 at 8:26:06PM | |
| $1.00 | Chemistry | chemical bonds | chemical bonds
... level of an atom. Bonding usually follows the octet rule, which states that atoms attain a more stable electron configuration with eight electrons in their valence shell. 1- When electron(s)...... | Nov 15, 2010 at 8:21:40PM | |
| $2.00 | Mathematics | On a number line, the coordinates of A, | linegraph.doc
...e the distance between points A and B is 3 units, hence the segment length for AB is 3. ... | Nov 15, 2010 at 7:29:53PM | |
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...of x values where the function exists = (-¥,4] 5) Range = interval of y values where the function ... | Nov 15, 2010 at 3:05:09PM | |
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...see ... | Nov 15, 2010 at 2:49:00PM | |
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...s = 186,000 mi/seconds A long distance cell phone call between two cities costs $5.92 for 16 min. What is the rate in cents per minute? $5.92 / 16 min = 0.37 $/min A 2 lb can of coffee...... | Nov. 15, 2010 at 12:38:00AM | |
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...d find b. Write the equation in the point-slope form of y = mx + b. Â Equation: y = 3x + 2 Â F.... | Nov 14, 2010 at 11:34:05PM | |
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...ause the bond angle... | Nov 14, 2010 at 8:04:34PM | |
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...in the same denominators.... | Nov 14, 2010 at 7:58:50PM | |
| $2.00 | Biology | Please help me understand this Protein buffer question | acid-base buffer.doc
... protein buffer in liver worked. The protein is albumin and it works... | Nov 14, 2010 at 7:41:30PM | |
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...t parenthese with right term of right parenthese), then multiply the inside terms (right term of left parenthese with left term of right parenthese), then multip... | Nov 14, 2010 at 5:31:45PM | |
| $10.00 | Chemistry | Chemistry lab | Molar volume of ideal gas
...tudent: I only kept the Question section to reduce the size of this attachment). My answers are in blue. See attached Word document if any symbols do not show properly in this textbox. Â Assignment...... | Nov 14, 2010 at 2:36:27PM |