Chemistry - June 2006

When NAOH exposed to the atmosphere, the pale pink color of the titration fad to colorless. Can someone account for this color change?

2006-06-26 09:14:33 · 9 answers · asked by JORDAN H 1

2006-06-26 09:03:28 · 1 answers · asked by mrkittypong 5

[Cu]+ is it like this?

2006-06-26 08:56:34 · 2 answers · asked by mrkittypong 5

2006-06-26 07:36:48 · 5 answers · asked by Anonymous

I'm thinking of 2 sealed containers with a hole in the top of each one. In the hole, I place an upside-down-u-shaped pipe joining them together. I container is salt water, the other is emptied. Can I boil the salt water (to separate salt from water), let the water evaporate into the pipe, and cool it on the other side to turn back into water? More importantly, would this make it safe enough to drink if I were stranded on an island?

2006-06-26 07:31:00 · 8 answers · asked by jlanquist 1

2006-06-26 07:19:59 · 2 answers · asked by Catherine K 1

2006-06-26 07:04:23 · 1 answers · asked by abc 1

any chemical, or mechnical means are appreciated!!

2006-06-26 06:36:29 · 3 answers · asked by Catherine K 1

It is obvious that acetic acid reacted with sodium bicarbonate (hydrogen carbonate) produces sodium acetate and carbonic acid (the latter decomposing into carbon dioxide and water).

Is it possible, though, for the reaction to be reversed, in the sense that sodium acetate is reacted with other compound(s) to yield acetic acid instead?

2006-06-26 06:25:54 · 4 answers · asked by nahazz_oracle 1

Whats it made of and stuff.

2006-06-26 06:24:35 · 7 answers · asked by Anonymous

What are the properities of anti matter? What makes it so "anti"?
If anti hydrogen and hydrogen anniallate each other, what do anti hydrogen and oxygen do?

2006-06-26 05:31:57 · 12 answers · asked by Anonymous

2006-06-26 05:31:49 · 2 answers · asked by Val P 1

2006-06-26 04:40:13 · 3 answers · asked by roxanne a 1

2006-06-26 04:24:26 · 4 answers · asked by amazinglife_1200 2

2006-06-26 04:21:48 · 1 answers · asked by sosick2287 1

2006-06-26 04:19:56 · 6 answers · asked by Anonymous

2006-06-26 04:18:37 · 4 answers · asked by Anonymous

2006-06-26 04:15:40 · 3 answers · asked by Anonymous

2006-06-26 04:12:59 · 9 answers · asked by Anonymous

2006-06-26 04:06:25 · 5 answers · asked by Anonymous

2006-06-26 04:01:23 · 7 answers · asked by shake2287 1

2006-06-26 03:54:07 · 5 answers · asked by black_ice1223 1

complete procedure ..... including extraction details.
only dpph assay required

2006-06-26 03:26:12 · 1 answers · asked by abc 1

im taking chemistry honors course so i want to know what it really about. i know it delas with math but what kind of math?

2006-06-26 03:25:53 · 15 answers · asked by dorkface512 2

2006-06-26 03:17:16 · 2 answers · asked by bhatt34 1

2006-06-26 03:07:03 · 5 answers · asked by winx_yui 1

2006-06-26 02:58:47 · 7 answers · asked by Soul rider 1

Can someone tell me where I am going wrong with these problems? I need it step by step please. Also, I asked this somewhere else, but both the answers that I got were wrong, so if your not sure, please don't answer. Thank you!

A concentrated HCl solution is 12.0 M. You have to make 300 ml of 0.600 M solution. How would you prepare it?

I worked it this way, which is the way the book tells us, but obviously get the wrong answer every time.
12.0 M x V1= 0.600 M x .300 L/ 12.0 M=

A concentrated solution of 15% w/v KOH solution is available. How would you prepare 20.0 ml of a 0.10% w/v KOH solution.

I worked this one (%1)V1=(%2)V2, by saying
(15%)V1=(.10%)(.200L)/ 15%
again the answer I get is wrong.
Can someone explain to me what I am doing wrong with these problems? Thanks so much!

2006-06-26 02:42:41 · 3 answers · asked by trinitarianwiccan 2

2006-06-26 01:46:01 · 6 answers · asked by Anonymous

Please do give the whole data and other associated sites as I want this for my project.

Also tell about the topics related to it . I am in 12th standard in India.

2006-06-26 01:31:07 · 2 answers · asked by Sanjana 2