Chemistry - September 2006

Please dont use long words, it them im not comfartable with. I have a homework assignment on chemical change and its due on Monday and the internet cant help me. Thank you if you help!

2006-09-23 07:11:15 · 6 answers · asked by me!! 2

odor of garlic. Do broken magnets normally smell like garlic? I don't get it. Was I just hallucinating?

2006-09-23 06:54:31 · 2 answers · asked by Anonymous

2.014×10-4 mol of an unidentified gaseous substance effuses through a tiny hole in 79.8 s.
Under identical conditions, 1.960×10-4 mol of argon gas takes 89.5 s to effuse.
What is the molar mass of the unidentified substance (in g/mol)?

----

HELP plz!!

2006-09-23 06:43:20 · 1 answers · asked by poppa 1

how can be it possible sulfonation of phenolic resin? we will get 110%yield in lab but it is not possible in commercial plant, is their are other tecnic to get more yield in phenolic resin

2006-09-23 06:24:29 · 2 answers · asked by Anonymous

Suppose a sample of refrigerant gas consisting of a simple mixture of the gases pentafluoroethane (C2HF5) and difluorormethane (CH2F2) has a density of 3.69 g/L at 20. °C and 0.873 atm.

Calculate the average molecular mass for this sample.

(This was found to be: 1.02×10^2 amu)

-------

The question I need some help with is:

Calculate the volume percentage of CH2F2 in the sample.

Any hints would be helpful. Thanks.

2006-09-23 06:10:35 · 5 answers · asked by poppa 1

2006-09-23 06:04:34 · 7 answers · asked by akhil dayal 2

2006-09-23 06:00:40 · 3 answers · asked by akhil dayal 2

which of the following has the strongest hydrogen bonding in it?

a) methyl amine

b) phenol

c) formaldehyde

d) methanol

2006-09-23 05:48:52 · 2 answers · asked by shradha 1

2006-09-23 05:32:36 · 4 answers · asked by exp 1

2006-09-23 05:20:23 · 6 answers · asked by Cyara H 1

C3H5O9N3 -------> CO2 + N2 + O2 + H2O

2006-09-23 05:11:10 · 7 answers · asked by tigersfan48111 2

2006-09-23 04:07:49 · 9 answers · asked by Sarah 3

what is its common name?

2006-09-23 03:47:06 · 3 answers · asked by arch v21 2

2006-09-23 03:43:52 · 7 answers · asked by arch v21 2

2006-09-23 03:22:56 · 2 answers · asked by joy 1

2006-09-23 03:16:02 · 3 answers · asked by joy 1

2006-09-23 02:34:20 · 6 answers · asked by bavwill 3

This was 4 days ago, and the black spots haven't faded.What do i do? Is there a way to remove them, how long will it take if i find no remedy?

2006-09-23 01:36:38 · 5 answers · asked by Dhanashri 2

which is useful for postgraduates

2006-09-23 00:24:57 · 3 answers · asked by kanakeswarao 1

i my opinion. the more development are the science, but the public aren't interested in the science. because the public don't know the basic science and porpuse of science.
what do your think about that?
i'm very nice to reveice your answere.

2006-09-23 00:17:19 · 4 answers · asked by hoa p 1

and why are bromine and clorine so much denser than fluorine and clorine.

2006-09-22 22:30:17 · 10 answers · asked by PrincessSparkles 2

2006-09-22 22:07:26 · 4 answers · asked by Anonymous

If a person eats poison in how much time would it start reacting in the body?????

Good day!! ^_^

2006-09-22 21:59:01 · 11 answers · asked by Anonymous

2006-09-22 19:36:30 · 1 answers · asked by dimple 1

the chemical must bubble wen added to oil or something simalar must be safe to people

2006-09-22 19:35:16 · 5 answers · asked by raymond 1

what happens to the electrons when we dont tap the electricity from a generator?

2006-09-22 18:57:51 · 4 answers · asked by Tabit 1

To day I read in the news paper that hydrogen is going to be used for power source in future battery cells. Can we use sea water to get Hydrogen? Also tell me what is the simple method to generate hydrogen and convert hydrogen into liquid. Can I use the wind power available at my roof top to get liquid hydrogen?.

2006-09-22 18:38:38 · 5 answers · asked by A.Ganapathy India 7

Theoretically if you reached absolute zero you would destroy matter right? would all life as we know it cease to exist?

2006-09-22 18:14:29 · 18 answers · asked by Anonymous

i mean, if they MADE the stuff, its not really anything u can find in nature and therefore shudn't be called an actual element of the earth, plus they only last like 2 seconds or something. its stupid

2006-09-22 18:09:46 · 4 answers · asked by . 2

2006-09-22 17:59:14 · 11 answers · asked by Anonymous