Chemistry - March 2007

Thanks for your help!

2007-03-11 06:04:07 · 4 answers · asked by Troman 1

I have the equation rate=k(Monomer)2 but i don't know what is k and what is (monomer)2

2007-03-11 06:00:48 · 3 answers · asked by Anonymous

yes right?

2007-03-11 05:50:02 · 5 answers · asked by Anonymous

I would really apreciate if you could answer this question and explain the answer to me.
An anticipated thank you!

2007-03-11 05:49:43 · 1 answers · asked by Firefly 3

How could the olefinic stereochemistry ( E or Z) be deduced?

thanks a lot ..........

2007-03-11 05:36:13 · 1 answers · asked by chemistryppl 2

I'm not very good with buffer questions but I thought I was doing this correctly when I solved for the pH but I continually find the wrong answer.

I've set up

HF + OH --> KF

.6 (HF) .13 (OH) 1.04 (KF)
- .13 (HF) -.13 (OH) +.13 (KF)
_________________________
.47 (HF) 0 (OH) 1.17 (KF)

.47x / 1.17 = 7.2 * 10^-4(Ka) and solve for x and then take the -log of x to find the pH.

Apparently something is incorrect but I can't figure out what. Any help would be appreciated.

2007-03-11 05:33:22 · 2 answers · asked by fmontgomery72 1

And also,what about when a gas is under constant pressure and its temperature increases, will its volume will increase?

2007-03-11 05:27:53 · 4 answers · asked by Troman 1

Milk of magnesia (Mg{OH}2) is used to neutrilize exess stomach acid (HCl). 0.583 g of magnesium hydroxide will neutralize how many moles od hydrochloric acid?

I just need the balanced equation. Thanks-you.

2007-03-11 05:26:05 · 4 answers · asked by kickitup21 1

Is salt an element, compound, or mixture? Why is it?

2007-03-11 05:22:18 · 5 answers · asked by Anonymous

is it the OH group, NH2 group, or the other group

2007-03-11 05:09:56 · 1 answers · asked by daisy 2

I was assigned to do any topic involving chemistry. I chose to do an essay on the Black Widow Spider. I don't know what to write about. Should I write about it's habitat, reproduction, and evolution?

2007-03-11 05:07:04 · 3 answers · asked by jumanji 2

It is clear that reactions do not follow Markovnikov's Rule. Briefly state the true guiding priniciple behind all alkene addition reactions. In other words, state the one thing that is true about all alkene additions which allows us to predict the major products...

Thanks!

2007-03-11 04:42:15 · 4 answers · asked by Chiquita 2

2007-03-11 04:34:57 · 2 answers · asked by Anonymous

I'm evaluating a coin and a magnet sticks to it... What is it or how can I tell?

2007-03-11 04:32:24 · 3 answers · asked by Anonymous

I just need the general rule of thumb.

2007-03-11 04:26:27 · 8 answers · asked by tired 1

using(1-5) 1 easiest 5 harder, in what order would you categorized them using these 5 numbers from easiest to hardest.
- Kinetics
-Equilibrium
-Energy and Spontaneity
-Reduction and Oxidation
-Electrochemistry

2007-03-11 04:23:22 · 3 answers · asked by avalentin911 2

An enzymes belonging to this grp of enzymes was isolated from bacterial culture.The enzymes was found to have a molecular mass of 266kDa. However, when the enzymes was denatured with urea and mercaptoethanol, two different valus were obtained, 105 kDa and 150kDa. Explain the observed results.

2007-03-11 03:27:06 · 1 answers · asked by Failure 2

2007-03-11 03:26:26 · 5 answers · asked by Anonymous

hi do u know the answer to my question if so plz do not hesitate to answer!!

2007-03-11 03:07:51 · 2 answers · asked by Anonymous

Please answer in the term of the ability of carbon to bind with other organic elements to form organic compound....
in ethene, they form a double covalent bond. in ethyne they form a triple covalent bond... is it because if they form a quadriple covalent bond, they will have no extra electrons that they can't form an organic compound....
or is the formation of this bond simply need too much energy to be released in order to form bonds... or are there any other reasons for this?

2007-03-11 01:57:48 · 5 answers · asked by hypnonebula 3

Please answer in the term of the ability of carbon to bind with other organic elements to form organic compound....
in ethene, they form a double covalent bond. in ethyne they form a triple covalent bond... is it because if they form a quadriple covalent bond, they will have no extra electrons that they can't form an organic compound....
or is the formation of this bond simply need too much energy to be released in order to form bonds... or are there any other reasons for this?

2007-03-11 01:54:36 · 2 answers · asked by hypnonebula 3

2007-03-11 01:40:36 · 4 answers · asked by \ 1

Can someone explain to me why the energy value given standard enthalpy of combustion is always negative?
Thankyou

2007-03-11 01:21:43 · 5 answers · asked by howdy 2

i need a ready lab report on factors affectin rate of chemical reactions. any idea of a site?

2007-03-11 01:05:28 · 2 answers · asked by meat 3

2007-03-11 00:56:39 · 6 answers · asked by Anonymous

for example, is copper more ductile than a copper-nickel alloy?

2007-03-11 00:56:10 · 2 answers · asked by amandac 3

2007-03-11 00:51:15 · 4 answers · asked by Anonymous

2007-03-11 00:36:30 · 3 answers · asked by daredevil_0818 1

It is said that dichloromethane can be used as the common solvent.

2007-03-11 00:16:32 · 5 answers · asked by boonu 2

(CH3CH2OH) this is what i have to find the molar mass of. i have the answer but i dont know how to do it, its 46 grams/mole

2007-03-11 00:14:31 · 2 answers · asked by party4life 1