Chemistry - March 2007

If you have one container of Cl2 gas and an identical container if CH4 gas both at 18 °C, then

A. What is the difference in average kinetic energy of the molecules?
and
B. What is the difference in the average velocity of the molecules?

2007-03-13 11:03:12 · 1 answers · asked by San Fran Kid 2

something else? Explain. I need help with this question. It's for science.

2007-03-13 10:35:32 · 5 answers · asked by Anonymous

Low pressure, high temperature, low dipole moments, high density, and/or strong intermolecular forces?

Thanks in advance for the help.

2007-03-13 10:30:11 · 3 answers · asked by Random G 3

2007-03-13 10:18:55 · 1 answers · asked by Itachi-Sama Luuuuver...!! 2

Indicate the oxidation and reduction reaction in each:

Mg + 2HCl --------- MgCl2 + H2

2AgBr --------- 2Ag + Br2

2007-03-13 10:18:30 · 2 answers · asked by Nurse2b 1

Specifically, what happens to the platinum? There is a chemical reaction - an explosion - but what happens to the platinum? Is it a part of the reaction, and consumed by it? Or is it merely a catalyst, triggering the reaction but ultimately untouched?

If there are any chemists out there with facts, numbers or formulae it'd be appreciated, otherwise a generalized idea would be fine too. Just please no wild guesses, we could do that ourselves!

2007-03-13 10:11:30 · 4 answers · asked by Kristy 4

2007-03-13 10:03:59 · 1 answers · asked by kohlirosy 1

i am just 1 tiny step away from making a deduction , and i am already pushing the dead line ! plz any chemistry gigs around plz drop a line or something ?

2007-03-13 09:50:20 · 5 answers · asked by livefast_dieyoung 2

2007-03-13 09:46:26 · 6 answers · asked by R C 2

2007-03-13 09:39:31 · 13 answers · asked by Anonymous

Please give me an example and explain thoroughly

2007-03-13 09:30:49 · 4 answers · asked by svictor24 6

I'm not sure about these, I've narrowed it down a bit, but I still have a couple possible answers for each. I appreciate the help in advance :)

1. What would happen to the absorbance of a solution if it was diluted to half its original concentration?
2. What would happen to the absorbance of a solution if it was placed in a cuvette that is twice as wide as the original?
3. What would happen to the absorbance of a solution if it was placed in a cuvette that was twice as tall as the original? The width was not changed.

2007-03-13 09:27:21 · 1 answers · asked by Anonymous

Since two atoms of Hydrogen and one atom of Oxygen are lighter than One atom of Carbon and two atoms of Oxygen, if a molecule of CO2 is a gas, one would expect a molecule of H2O to be a gas also.

2007-03-13 09:04:09 · 12 answers · asked by LJH 1

its for kids and it is made with laundry blueing , ammonia, charcoal. the stuff grows and makes crystals . but it has been taken in as evidence in thinking its meth. in short i wounder if a lab will know its not meth or does this recipe on the box of blueing actually make meth? why /? if not whats the difference

2007-03-13 08:57:12 · 1 answers · asked by rick s 2

Artificial butter flavor in popcorn

Almond-flavored cookies

Candies with cinnamon flavor

Nail polish remover

2007-03-13 08:56:39 · 5 answers · asked by shortydidi03 2

2007-03-13 08:55:21 · 1 answers · asked by Tonia V 1

2007-03-13 08:50:07 · 4 answers · asked by Tonia V 1

Calculate the pH of a 0.480 M solution of NaOCl


HINT: find Kb from Ka of the conjugate acid

2007-03-13 08:42:48 · 2 answers · asked by giggles9783 1

2007-03-13 08:39:05 · 5 answers · asked by Anonymous

ex. [ Bi(2)S(3) ]
solubilite= 8.2 x 10(-18)
and the gram-formula mass is 514.15

2007-03-13 08:35:27 · 3 answers · asked by Hiborn 1

2007-03-13 08:34:54 · 7 answers · asked by Tb 1

2007-03-13 08:34:24 · 3 answers · asked by Anonymous

2007-03-13 08:24:37 · 1 answers · asked by Anonymous

Is it because of water's hydrogen bonds?
Or, is it because water is polar and Carbon monoxide isn't?
Or, because water has strong London Dispersion Forces?

Or is it none of those things?

Thanks in advance for the help

2007-03-13 08:24:33 · 2 answers · asked by theweirdguy1 2

2007-03-13 08:22:21 · 4 answers · asked by amore 1

2007-03-13 08:18:51 · 2 answers · asked by Anonymous

The titration required 20.65 mL of base

a) What was the molar concentrationof acetic acid in vinegar?

b.) Assuming the density of vinegar to be 1.0g/mL, what was the precent by mass of acetic acid in vinegar?

2007-03-13 08:16:46 · 4 answers · asked by cole 1

HINT: find Kb from Ka of the conjugate acid

2007-03-13 08:12:47 · 4 answers · asked by yani_sabree 2

2007-03-13 08:11:54 · 7 answers · asked by Anonymous

I am looking into how the pH of dichromated gelatin is affected after exposure to light in an attempt to selectively transfer acid fixing dyes to paper. I would like to raise a 10% solution of ammonium dichromate to pH 7, but I am not sure what buffer would be most effective and safe.

Any insight?

2007-03-13 08:08:41 · 2 answers · asked by Recovering Kitty 2