Chemistry - August 2006

2006-08-02 20:30:56 · 1 answers · asked by ddew fdre 1

Colligative properties of a solution are affected only by the number of solute particles in the solution. To calculate the boiling point elevation of a solution you would do i * K * m = CBP where i is the Van't Hoft factor, K is the molal boiling point constant, m is the molality, and CBP is the change in boiling point. My question is what if you had two solutes with different i factors say sodium chloride and calcium chloride and put them in water to make 1 kg of solution. How would you determine the change in boiling point? Would you simply add up the molalities? Then what would be the i factor? Would you calculate the change that sodium chloride alone would make and add that to the change calcium chloride would make alone? Make as many assumptions as needed.

2006-08-02 19:33:30 · 2 answers · asked by kingbookworm 1

Ethanol contains less carbon per molecule than gasoline, but it still is composed of carbon (and oxygen and hydrogen). Does this mean that by combusting biofuels we will still be releasing carbon dioxide into the atmosphere? If this is the case, do people think we should consider this our "long term solution" to the energy problem?

2006-08-02 19:29:32 · 8 answers · asked by Josh G 2

The pH of a 1.00 x 10^-3 M solution of HOCN is 2.77 at 25*C. Calculate Ka from this result.

What are the steps involved?

2006-08-02 17:57:17 · 4 answers · asked by Nate-dawg 2

2006-08-02 17:30:33 · 6 answers · asked by Aqib 2

1) CH3(CH2)14 COOH
2) CH3(CH2)7 CH=CH(CH2)7 COOH
3) HOCH2CH2OH
4) HOCH2CH(OH)CH2OH

2006-08-02 17:16:10 · 3 answers · asked by Emerson 5

2006-08-02 16:19:12 · 2 answers · asked by hwei666 1

I need to know. I haven't found any information and I would like to know what happens when you mix blood with either hydroflourocarbon 152A or isopropyl myristate.

Thanks.

2006-08-02 16:05:32 · 4 answers · asked by hurlyboom38 1

1) CH3(CH2)14 COOH
2) CH3(CH2)7 CH=CH(CH2)7 COOH
3) HOCH2CH2OH
4) HOCH2CH(OH)CH2OH

2006-08-02 16:03:28 · 1 answers · asked by Emerson 5

2006-08-02 15:07:47 · 2 answers · asked by Anonymous

Or will the plastifiers (which are carconigenic) leach out into your food or drinks?

2006-08-02 14:50:34 · 5 answers · asked by Zelda Hunter 7

PLS HELP ME TO LIST DOWN SOME FACTORS THAT AFFECT THE SOLUBILITY OF A GIVEN SOLVENT

2006-08-02 14:50:11 · 7 answers · asked by Anonymous

Concentration
Molarity
weight by weight volume

2006-08-02 13:18:53 · 3 answers · asked by Anonymous

A. 214 J
B. 6,573 J
C.1,314,718 J
D. 4,187,000 J

2006-08-02 12:28:10 · 3 answers · asked by Anonymous

There is a chart in my chemistry book that has the formulas (structure) for the 12:0 and 14:0 fatty acids. I'm just not sure what I'm drawing is the correct way to draw it.

2006-08-02 11:53:25 · 2 answers · asked by kittytalker 3

Please feel free to include the melting point, and boiling point all in Celsius please.Thanks

2006-08-02 10:59:01 · 4 answers · asked by WG Allen 1

What is the difference between number average molecular weight and weight average moecular weight?

2006-08-02 10:56:18 · 3 answers · asked by Anonymous

Just imagine the number perverts wanting to get their hands on that....not saying that i'm a pervert or anything *laughs nervously*

2006-08-02 10:49:51 · 28 answers · asked by Anonymous

2006-08-02 10:41:34 · 2 answers · asked by Ms. Dez 1

2006-08-02 08:36:32 · 4 answers · asked by Alex 1

2006-08-02 08:26:54 · 11 answers · asked by pancake 1

2006-08-02 07:48:38 · 6 answers · asked by sianz 2

2006-08-02 07:44:11 · 1 answers · asked by Nickname 1

2006-08-02 07:22:34 · 10 answers · asked by cmsb705 5

2006-08-02 07:06:34 · 3 answers · asked by Pink Rose 2

Let's say you put pure water into an unbreakable container of some kind. Then you heated this container far beyond water's boiling piont, where it would normally change to steam under normal atmospheric conditions, but in this situation, it would be under great pressure, since there would be no where for the steam to expand. So would the water stay in a liquid state? Or would it turn to steam, and just be under very high pressure?

Thanks

2006-08-02 06:55:37 · 5 answers · asked by ----- 2

I was doing the electrolysis on water and these dots showed up where the oxygen was forming, on the aluminum. Someone said it was AlHO4, a toxic alkaline base. Help! Am I going to be okay? I didn't touch it or anything.

2006-08-02 06:38:21 · 5 answers · asked by Need answers! 1

2006-08-02 06:11:06 · 4 answers · asked by balwinder s 1

2006-08-02 06:07:24 · 3 answers · asked by balwinder s 1

I was doing an experiment with water electrolysis, and I'm wondering, if I collect a test tube full of hydrogen, and release it into the air, without igniting it, what will happen? And if I release it outside, will there be enough heat to get the reaction going? (It's around 96 degrees Fahrenheit here today, or around 35.5 degrees Celsius.) I want to release the hydrogen when I'm finished, but I don't know what will happen. Thanks!

2006-08-02 05:58:24 · 10 answers · asked by Need answers! 1