Chemistry - December 2006

2006-12-20 02:13:40 · 3 answers · asked by GotAQuestion101 1

2006-12-20 02:11:55 · 9 answers · asked by keith d 1

2006-12-20 01:57:40 · 12 answers · asked by Anonymous

H3C-O-C(double bond)O (-another CH3 bonded to last carbon)


or


H3C-O-C(double bond)O-C-C(double bond)O (-antoher O-CH3 bonded to the last carbon)



Thanx

2006-12-20 01:55:23 · 7 answers · asked by atomic blue 1

I want to determine the concentration of sodium carbonate and sodium hydrogen carbonate by titrating an unknown sample with HCl. I only have the mass of the sample and the volume of hcl used for titrating it with phenolphthalein and methyl orange. only with these data at hand, how will i be able to obtain the percent by weight?

2006-12-20 01:51:43 · 2 answers · asked by einnelnnyl 2

put some mentos candy in a bottle of coke? why does this happen?

2006-12-20 01:45:51 · 2 answers · asked by Anonymous

i mixed 1 cup of baking soda in 1 bottle and 1 cup of vinigar in another bottle then mixed them together? what would happen? why

2006-12-20 01:26:57 · 5 answers · asked by Anonymous

If a person breathes in 22m3 of air per day and the air contains 0.205 milligrams of particulates per m3

how many grams of particulates does the person breathe in per day?

2006-12-20 01:22:36 · 3 answers · asked by Matthew S 1

2006-12-20 01:03:05 · 16 answers · asked by Anonymous

2006-12-20 00:56:29 · 2 answers · asked by ccganley 1

2006-12-20 00:16:41 · 2 answers · asked by Anonymous

pls atleast 3 examples

2006-12-20 00:14:30 · 2 answers · asked by Anonymous

2006-12-20 00:13:15 · 1 answers · asked by Anonymous

what do you mean by acid 1 and acid 2? base 1 and base 2?

2006-12-20 00:06:35 · 3 answers · asked by Anonymous

I want to know this material of 2-Naphthalenethiol (cas number:91-60-1 )more uses!!

2006-12-19 23:50:04 · 1 answers · asked by tryleadchem 1

2006-12-19 22:54:29 · 5 answers · asked by Akanksha D 1

about electrons on an atom the valence electrons

2006-12-19 22:50:29 · 4 answers · asked by RAFAEL A 1

Original equilibrium: Fe^(3+) + SCN^(1-) <-----> Fe(SCN)^(2+)

1. Add Fe(NO3)3

2. Add KSCN

3. Add AgNO3

4. Add NaOH

2006-12-19 21:15:08 · 2 answers · asked by Anonymous

A solid mixture containing only sodium chloride and sodium nitrate has a mass of 4.000g. When this sample is dissolved in water and excess silver nitrate is added, 4.590g of solid silver chloride is formed. Calculate the percent mass of sodium chloride in the original 4.000g mixture.

2006-12-19 19:44:17 · 2 answers · asked by Jay 2

I just want to know exactly what each step implies.

2006-12-19 19:07:59 · 3 answers · asked by Soubi 1

4). Determine which salt (sodium, aluminum, or calcium chloride)you should use to melt the ice most effectively. Explain your answer and write pertinent equations.

any websites suggestions? please?

2006-12-19 19:03:11 · 0 answers · asked by Anonymous

Telllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll Meeeeeeeeeeeeeeeeeeeeeeeeeeee

2006-12-19 18:39:42 · 8 answers · asked by hamna s 1

with fuming sulphuric acid.

2006-12-19 18:11:49 · 3 answers · asked by janu 1

my gold chain got contact wiith mercury of broken thermometer .i want to remove it with out informing my parents

2006-12-19 17:57:48 · 5 answers · asked by hum 2

2006-12-19 17:40:48 · 3 answers · asked by hash 1

If a reaction is exothermic, is the change in entropy positive or negative? I know that the change in enthalpy is negative, but I don't know about entropy.

2006-12-19 17:36:25 · 3 answers · asked by uoprummel 2

how many grams of soild mognesium chloride, MgCl2, need to be used to make 250 ml of 0.50Msolution?

(MgCl2 molr mass=95.21)

the asnwer is 12 g
but how would you solve this?

2006-12-19 17:23:16 · 4 answers · asked by Christie 1

2006-12-19 17:22:00 · 3 answers · asked by janu 1

a company that produces quicklime,CaO, by heating calcium hydroxide, Ca(OH)2

(Ca molar mass=40.08g/mol

the answer is 80%
how would you solve this problem?

2006-12-19 17:21:13 · 1 answers · asked by Christie 1

how can you tell which is soluble or not in a test? When they ask you if it's percipitated or solid?

2006-12-19 17:11:34 · 1 answers · asked by ..............>.>......... 1