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Questions Posted by peggyred

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Bounty Status Category Sub-Category Question Due
$1.00 Closed, closed Chemistry General Chemistry neutralization
Titration of 15.00ml of HCL solution requires 22.50ml of 0.1200M NaOH solution. What is the molarity of the HCL solution? Please help me with this I need to see all steps if possible 		Apr. 25, 2009
$1.00 Closed, closed Chemistry General Chemistry acid rain
acid rain has been described as a reginal problem, whereas the greenhouse effect is a global problem. should i agree with this statemnet? why or why not? 		Apr. 25, 2009
$0.50 Closed, closed Chemistry General Chemistry gamma ray
write a nuclear reaction to represent cobalt-60 decaying to nickle-60 plus a beta particle plus a gamma ray 		Apr. 25, 2009
$1.00 Closed, closed Chemistry General Chemistry nuclear waste
a chemist proposes a research project to discover a catalyst that will speed up the decay of radioactive isotopes that are waste products of a medical lab. such a discovery would a potentiol solution... 		Apr. 25, 2009
$0.50 Closed, closed Chemistry General Chemistry [H3O-]
calculate the [H3O-] of aqueous solution that is: 1.1.0x10to the negative 9M in OH- 2. 1.0x10to the negative5M in OH- 		Apr. 25, 2009
$0.50 Closed, closed Chemistry General Chemistry PH calculation
calculate the pH of a solution that has [OH-]=5.5x10to the negative4 M please help me i need the formula and how to figure this one 		Apr. 25, 2009
$0.50 Closed, closed Chemistry General Chemistry tittration
what volume of 0.2000M NaOH is required to titrate 20.00ml of 0.1000M HCl 		Apr. 25, 2009
$1.00 Closed, closed Chemistry General Chemistry pont depression
which compund would cause the greater freezing point depression per mole H2O:C6H12O6 or NaCl 		Apr. 20, 2009
$1.00 Closed, closed Chemistry General Chemistry antifreeze
which would cause greater boiling point elevation per mole in H2O:MgCl2 or HOCH2CH2OH 		Apr. 20, 2009
$1.00 Closed, closed Chemistry General Chemistry salt in h2o
design experiment that would enable me to measure the degree of solubilty of a salt as Kl in H2O 		Apr. 20, 2009