Chemistry - September 2007

a polar compound, or a non-polar compound.


I say polar, because they can form hydrogen or dipole dipole bonds. Am I right?

2007-09-17 11:07:33 · 2 answers · asked by Anonymous

2007-09-17 10:25:25 · 1 answers · asked by alexis g 1

2007-09-17 10:15:19 · 5 answers · asked by Anonymous

Do I have these properly named?

BF3 = boron trifluoride
AgCl = Gold (I) Chloride
PbBr4 = Lead (iv) bromide

2007-09-17 09:49:23 · 3 answers · asked by mikala m 2

the average atomic mass of ga is 69.72 amu. calculate the abundance of each isotope.
other info: gallium consists of 2 naturally occuring isotpes with masses of 68.926 and 70.925 amu

please provide work too thanks!! i woudlnt ask this if i really couldnt figure it out, and i f i could do it on my own i would

2007-09-17 09:32:21 · 2 answers · asked by Anonymous

2007-09-17 09:22:23 · 1 answers · asked by LiNnY 3

2007-09-17 09:08:26 · 4 answers · asked by chris t 2

Today in Chemistry I found out that steam is colorless, this is noticable when you boil a kettle and where the steam is coming out you can see its colorless but further up you can see a whitish cloud. What is the whitish cloud, why is steam colorless and the cloud white? what is it?

2007-09-17 09:08:04 · 4 answers · asked by Kaz Wilkosz 2

The delta Hvapor of water is 40.7 kJ/mol.
I understand how to work the problem but I do not know where the book comes up with 9.81689 when you go to multiply vapor pressure one to get the pressure of the second one. Please help...confused!!!

2007-09-17 08:58:29 · 2 answers · asked by 00000000 1

2007-09-17 08:53:21 · 2 answers · asked by Anonymous

2007-09-17 08:44:21 · 3 answers · asked by cliffordw hippiefied ol fart 7

Im evaluating an experiment whereby i reacted copper with iodine.
Once the two had reacted, copper iodide was left on the copper strip.
In class we scraped this off using a ruler.
I am now evaluating, and as part of my evaluation, i need to suggest a more accuarate way of ensuring all copper iodide is removed from the strip.
Does anyone know how this could be done?

2007-09-17 08:02:39 · 2 answers · asked by Lucy 4

A reagent required 25 g of Magnesium sulfate MgSO4 * 7H2O (FW 245.5), only anhydrous crystal was available. How many grams of the anhydrous is needed to prepare this reagent?

The answer in the book is 12.17 grams

But how do you get that? I was way off.. I got something like 38.something.

2007-09-17 07:55:41 · 1 answers · asked by I_color_outside_the_lines 4

how many grams of Calcium Carbonate are needed to produce 280g of Calcium Oxide ???? plz help

2007-09-17 07:41:36 · 6 answers · asked by Anonymous

express (W/V) measurement in g/dL

I think I'm doing this wrong.

I have it set up like this so far:

85g/dL x 10 dL/1L x 1M/58 g and now I'm not sure where to go from here...am I doing this right?

2007-09-17 07:35:23 · 1 answers · asked by I_color_outside_the_lines 4

determine the cost to supply enough vanillin so that the aroma could be detected in a large aircraft hanger with a volume of 6.2E7 ft3

2007-09-17 07:34:12 · 1 answers · asked by shake 1

forgot to add - in fractional distillation
Thanks!

2007-09-17 07:29:28 · 1 answers · asked by Andrew B 1

2007-09-17 07:23:30 · 1 answers · asked by Kimberly L 1

(a) 36.9 g table sugar (C12H22O11) in 185 mL solution
_______ M
(b) 5.90 g LiNO3 in 685 mL solution
_______ M

2007-09-17 07:22:22 · 1 answers · asked by Kimberly L 1

(a) Ar(g), decrease P
-increase
-decrease
-stay the same
(b) Ne(g), increase T
-increase
-decrease
-stay the same

2007-09-17 07:21:11 · 1 answers · asked by Kimberly L 1

2007-09-17 05:34:26 · 3 answers · asked by Sidereal Hand 5

1-propanol ..... CH3CH2CH2OH
1-heptanol ..... CH3CH2CH2CH2CH2CH2CH2OH

I said 1-propanol because it's intermolecular forces are stronger, due to its shorter chain (which over-rides 1-heptanol's stronger dispersion forces). Am I right?

2007-09-17 03:49:10 · 7 answers · asked by Anonymous

2007-09-17 03:31:32 · 3 answers · asked by jessica d 1

2007-09-17 03:30:26 · 1 answers · asked by jessica d 1

My teacher doesnt explain anything, he forgot to order the book and he doesn't provide examples. he makes us do our work with no guidance and we take it up as a group like a week later. I'd just like to understand. I am smart but with no direction.. i dont know what to do . I work well with examples and i dont have any,
thanks

2007-09-17 03:12:53 · 1 answers · asked by Angela S 1

2007-09-17 03:10:42 · 4 answers · asked by Tony K 1

What does mass equal?

2007-09-17 03:08:28 · 3 answers · asked by JJ 1

2007-09-17 03:04:27 · 4 answers · asked by mariansweetheart 1

2007-09-17 03:01:38 · 6 answers · asked by meghamala86 1

2007-09-17 02:55:50 · 4 answers · asked by Anonymous