Chemistry - March 2007

2007-03-14 05:11:08 · 1 answers · asked by Anonymous

2007-03-14 05:02:02 · 11 answers · asked by Vannuck 2

2007-03-14 04:54:39 · 1 answers · asked by NickyX 1

What are the misuses for trinitrotoluene (TNT)?

2007-03-14 04:53:18 · 5 answers · asked by untilyoucamealong04 3

I know ch4 is ammonia, but what is ch3?

Please help!!

2007-03-14 04:26:26 · 9 answers · asked by Anonymous

if I have 120 gals of fluid that is 20% alcohol how much fluid of 70% alcohol would I have to Add to the 120 gal to make it 40% alcohol

2007-03-14 04:11:45 · 3 answers · asked by Bernie A 1

I need to find out one reason why dive tanks have Helium, as well as Oxygen.....


Please Help ME!

2007-03-14 04:00:10 · 5 answers · asked by Jenny C 1

2007-03-14 03:32:59 · 4 answers · asked by Anonymous

Hydroxylamine, HONH2, like ammonia, is a Bronsted base. A 0.15 M solution has a pH of 10.12. I was able to calculate the Kb value to be 1.2E-7 and the pKb to be 6.94, however I keep getting 0.088 % ionization which is incorrect. If anyone could help me out, I would be very grateful.

2007-03-14 03:31:46 · 1 answers · asked by Ryan C 1

2007-03-14 03:29:31 · 2 answers · asked by Therese Joy A 1

Would I be correct in saying the only thing you can burn is Vapour and does that include gas

2007-03-14 03:20:15 · 7 answers · asked by alan b 1

as i know water is H20

2007-03-14 03:06:02 · 3 answers · asked by chris b 1

A pure sample of iron (III) sulfide, Fe2S3, has a mass of 8.160g
a) How many moles of Fe2S3 are in the sample?

b) What number of moles of iron (III) ions are present?

c) What number of moles of sulfide ions are present?

d) What maximum mass of iron could be obtained from the sample?

Please help me! I have been working on these questions for about 2 and a half hours. I have been going through my chemistry textbook and booklets. I think I have the answer to a but I have no idea how to find the number of moles of iron (III) ions. I need to know that to answer c. In part d, how do I find the answer? Please help me and show me the correct processes (clear working) involved before the answers. Thankyou chemistry wizzes.

2007-03-14 01:40:15 · 3 answers · asked by Anonymous

provide illustrations if available

2007-03-14 01:38:20 · 5 answers · asked by shutterbix 1

Coke

2007-03-14 01:25:25 · 11 answers · asked by Santosh H 1

please explain and give an example

2007-03-14 01:11:54 · 1 answers · asked by shutterbix 1

2007-03-14 01:09:59 · 5 answers · asked by Anonymous

2007-03-14 01:06:03 · 3 answers · asked by -jAiVe- 1

2007-03-14 01:04:40 · 1 answers · asked by -jAiVe- 1

2007-03-14 01:04:03 · 4 answers · asked by -jAiVe- 1

2007-03-14 01:03:12 · 2 answers · asked by -jAiVe- 1

2007-03-14 01:01:30 · 1 answers · asked by -jAiVe- 1

2007-03-14 00:35:53 · 2 answers · asked by cookies_rule_91 3

2007-03-14 00:15:51 · 1 answers · asked by tornado 1

after an extended time, a cave can become very large if the overlying rocks are stable. what acid dissolves thelimestone? what is the source of this acid?
URGENT.....

2007-03-13 23:49:58 · 2 answers · asked by dj opelac(shs II dalton) 1

2007-03-13 23:21:21 · 3 answers · asked by Anonymous

2007-03-13 22:49:09 · 4 answers · asked by thq 1

Okay i feel like a complete knob but I've forgotten how to work this out. If you could show your working that would be greatly appreciated.

Thanks guys

2007-03-13 22:37:08 · 2 answers · asked by Anonymous

2007-03-13 22:32:14 · 4 answers · asked by thq 1

2007-03-13 22:14:24 · 2 answers · asked by anup v 1