Chemistry - April 2007

2007-04-24 03:43:26 · 4 answers · asked by fuzzyfo1 1

Atomic no. of this element is 26 and is denoted by 'Fe'.

2007-04-24 03:11:07 · 4 answers · asked by stamps_teresa 1

solution, instead of with water, before filling it at the start of the titration?

2007-04-24 03:08:19 · 4 answers · asked by Anonymous

It will be of great help.

2007-04-24 03:07:28 · 5 answers · asked by notynika 2

Thanks

2007-04-24 03:06:04 · 4 answers · asked by notynika 2

Thanks in advance

2007-04-24 02:09:15 · 3 answers · asked by Saint L 2

2007-04-24 01:56:34 · 3 answers · asked by Anonymous

2007-04-23 23:46:46 · 2 answers · asked by Rajchem 2

i have some questions about properties of systems in chemical euilibrium, plzzzz contact me to discuss it
missitalian_9@yahoo.com

2007-04-23 20:05:04 · 2 answers · asked by Cinderella 3

Just curious what side affects of mixing uranium & Lithium together what would this cause????????

2007-04-23 19:55:56 · 5 answers · asked by daguy303 1

is it better to do organic chemistry rather than general chemistry

2007-04-23 19:53:38 · 4 answers · asked by madan k 1

but yet simple and can be done in school laboratory using simple material?

2007-04-23 19:43:52 · 1 answers · asked by Anonymous

2007-04-23 19:37:22 · 1 answers · asked by Anonymous

what is charge with gas

2007-04-23 19:37:10 · 2 answers · asked by vicky b 1

Using the VSEPR theory, predict the molecular structure of each of the following molecules.
(a) NCl3
linear
tetrahedral
trigonal pyramidal
nonlinear, V-shaped
(b) GeI4
linear
tetrahedral
trigonal pyramidal
nonlinear, V-shaped
(c) CCl4
linear
tetrahedral
trigonal pyramidal
nonlinear, V-shaped

2007-04-23 19:32:11 · 3 answers · asked by Anonymous

Using the VSEPR theory, predict the molecular structure of each of the following polyatomic ions.
(a) sulfite ion, SO32-
linear
tetrahedral
trigonal pyramidal
nonlinear, V-shaped
(b) perchlorate ion, ClO4-
linear
tetrahedral
trigonal pyramidal
nonlinear, V-shaped
(c) ammonium ion, NH4+
linear
tetrahedral
trigonal pyramidal
nonlinear, V-shaped

2007-04-23 19:28:07 · 1 answers · asked by Anonymous

Convert L of solution to grams, using Density....?
60.0 g of vinegar and a density of 1.01 g/ml




My answer was, I found the volume in ml ( I did V=m/D) then converted it into L, so I found 0.0594 L... Now I dont know how to convert it to grams.

2007-04-23 19:26:30 · 2 answers · asked by luciousmoi69 1

Using the VESPR theory, predict the molecular structure of each of the following molecules.
(a) GeI4
linear
tetrahedral
trigonal planar
trigonal pyramidal
V-shaped
(b) H2S
linear
tetrahedral
trigonal planar
trigonal pyramidal
V-shaped
(c) SiCl4
linear
tetrahedral
trigonal planar
trigonal pyramidal
V-shaped

2007-04-23 19:24:22 · 2 answers · asked by kevin n 1

Im lost!!! percent weight of the acid...?
Given that the molar mass of Vinegar is 60.0g and that the density of the vinegar solution is 1.01 g/ml, calculate the percent weight of the acid in the sample.

Additional Details

1 hour ago
Moles of Vinegar= 0.0034 moles
Molarity of Vinegar= 0.68


This the other info I have :(

2007-04-23 19:23:26 · 2 answers · asked by luciousmoi69 1

Give the total number of valence electrons in each of the following molecules.
(a) H2O2

(b) N2O

(c) NO2

(d) C3H8

2007-04-23 19:21:45 · 3 answers · asked by kevin n 1

Rank these transition metal ions in order of decreasing number of unpaired electrons.

Fe^3+
Ni^2+
Cu^1+
V^3+
Mn^4+

Consider the following vanadium species. Arrange them in order of strongest to weakest oxidizing agent.

[V(H2O)6]^3+
[V[H2O)4]^2+
[V(H2O)6]^2+
VO4^3-


And any explanations of how you know would be greatly appreciated!

2007-04-23 19:20:41 · 5 answers · asked by Anonymous

My question is: Give a clear determination of the difference between slow and fast acting poisons.

what does this mean? Plz help me??? best answer up for grabs...

2007-04-23 19:16:22 · 4 answers · asked by Sam P F 1

I now know that butter is way better than margarine, I saw through the b^llsh't!

2007-04-23 19:04:02 · 3 answers · asked by Stonerscientist 2

am not really gr8 at this topic.so pls bear with me.
frm wat i could gather,
*if atm P increases,boiling pt increases.
*the max temperature of steam at a particular atm P is the critical temp.at the corresponding P is the critical P .
*now,if T is kept constant,and P is increased,what will happen???
*if P is kept constant and T is increased, what will happen??
will we get super heated steam?
pls reason your answer.
TY

2007-04-23 18:55:50 · 2 answers · asked by sriraam h 2

concentration, temperature, volume, and total pressure

i only get how it shifts when dealing with pressure, but for the rest (concentration, temperature, and volume) i don't get how it shifts....mind explaining?

2007-04-23 18:51:14 · 3 answers · asked by kirby s 1

2007-04-23 18:48:23 · 2 answers · asked by Christy RN 4

2007-04-23 18:45:17 · 1 answers · asked by randy_nephro 1

i dont want the answer, so again, i just need the steps...sorry this is my second question i know it must be annoying but here it goes:

*i have a balanced chemical reaction

*i have the amount of each of the two reactants (in grams)

*there are two products

*i need to know how much of each product is produced

im sorry i cant give numbers cause id like to figure it out with just the steps!!! thank you soo much.

2007-04-23 18:44:46 · 3 answers · asked by 360 2

2007-04-23 18:40:56 · 2 answers · asked by randy_nephro 1

I am stumped on this question. If anyone could give me some pointers or advice I would appreciate it a ton!

In the benzilic acid rearrangement reaction (benzil -> benzillic acid), the side product diphenylmethanol is somtimes formed. Suggest a possible mechanism for its formation.

I don't need the exact mechanism, but a few pointers would be greatly appreciated.

Thanks!

2007-04-23 18:38:49 · 2 answers · asked by Roberto 3