Chemistry - August 2007

Please help! Need to write the reaction between m-nitroaniline and HCl.

Thank you!!!

2007-08-15 03:38:32 · 7 answers · asked by miledi111 1

I have a test tommorow but I don't have an idea what are the 3 isotopes of hydrogen and how will i get the mass number, number of proton, number of neutrons, number of electron, and the atomic number of it. My test is like a chart, it is like a "fill in the blanks" chart. Please answer my question now please! I hopoe you can answer me fast ... THANKS !!!

2007-08-15 03:12:34 · 8 answers · asked by Anonymous

a) sodium hexacyanoferate(III)
b) triaquatrinitrotitanium(IV)nitrate
c) potassium diaquabis(oxalato)chromate(II)

2007-08-15 01:23:06 · 2 answers · asked by Anonymous

2007-08-15 00:17:32 · 3 answers · asked by Donald A 1

2007-08-15 00:06:21 · 1 answers · asked by Anonymous

2007-08-14 23:47:02 · 1 answers · asked by Anonymous

Potassium Permanganate, 0.18N and Potassium Permanganate, 0.02mol

What is the different?

2007-08-14 23:13:23 · 4 answers · asked by s6kv 1

After a long time we don't use the applicance, why do we need to recharge the rechargeable frequently?
Is that true, if we keep leave a rechargeable battery for 1 or 2 or 3 years, is that true that the cell will permantly die? Why?

2007-08-14 20:31:04 · 3 answers · asked by Anonymous

Is there any criterion to determine the ability for the recrystallization formation?

2007-08-14 20:29:16 · 3 answers · asked by Doc^chem 2

a) CaCI^2(aq)+NH^4OH(aq)---->Ca(OH)^2(s)+NH^4CI(aq)
b)Sc^2(CO^3)^3(s)--->Sc^2O^3(s)+CO^2(g)

2007-08-14 20:17:25 · 3 answers · asked by Anonymous

Cr: [Ar]4s^2 3d^4 = [Ar]4s^1 3d^5 ?????????

2007-08-14 16:54:55 · 3 answers · asked by Anonymous

2007-08-14 16:46:29 · 4 answers · asked by Anonymous

fire blow lighter breath

2007-08-14 14:53:23 · 1 answers · asked by Anonymous

2007-08-14 14:19:17 · 2 answers · asked by tracy 1

whats the difference with sterling silver? which 1 is better?

2007-08-14 13:40:42 · 5 answers · asked by Anonymous

2007-08-14 12:58:47 · 3 answers · asked by aeronauticalgenius 1

the last word is molecules...i really need help with this one....and i please would appreciate and explanation

2007-08-14 12:24:37 · 3 answers · asked by Anonymous

2007-08-14 10:51:56 · 7 answers · asked by ? 1

A. 0.300 mol NH4Cl + 0.200 mol NaOH
B. 0.200 mol HNO3 + 0.300 mol NH3
C. 0.300 mol HNO3 + 0.200 mol NH3
D. 0.200 mol NH4Cl + 0.300 mol NH3
E. 0.300 mol NH4Cl + 0.200 mol NH3

Can somebody please explain how to do this problem, i don't even know how to approach it. Thanks so much in advance!

2007-08-14 09:17:43 · 2 answers · asked by lalala 3

2007-08-14 09:16:25 · 2 answers · asked by mannu 2

2007-08-14 09:07:19 · 6 answers · asked by Anonymous

does the force from dropping the marble break the surface tension of the water?

2007-08-14 08:57:50 · 5 answers · asked by mannu 2

Just a few questions.

1. Find the gram equivalent mass for H3PO4

2. Find the gram equivalent mass for Mg(OH)2.

3. How many equivalents are in 10.5 grams of Al(OH)3?

4. How many equivalents are in 5.4 grams of Ca(OH)2?

5. Find the normality of 2.4 M H2CO3.

6. Find the normality of 0.65 M Ba(OH)2 .

7. What is the normality of a solution containing 2.4 g of H3PO4 in 350 mL of solution?

8. Complete the following equation:

Ca(OH)2 + HCl →
9. What volume of 0.58M HF is needed to neutralize 55.2mL of 0.79M Al(OH)3?

10. What is the molarity of Ba(OH)2 if 65.2mL are neutralized by 154.2 mL of 0.50 M HCl?

11. What volume of 0.24 M LiOH is needed to neutralize 125 mL of 0.85 M H2SO4?

12. What volume of 0.050 M Mg(OH)2 is necessary to neutralize 10.5 mL of 0.54 M HNO3?

13. A 25.3 g sample of KOH in 150.5 mL of solution is reacted with 0.75 M H2SO4. What volume of the acid is needed to neutralize the base?

2007-08-14 08:37:40 · 3 answers · asked by Anonymous

I want to understand mechanism of solubility> I know "like dissolves like" i.e. polar substance will dissolve in polar and non-polar will dissolve in non-polar solvent. Can the solubility be predicted on the basis of probability of some kind of bond formation/interaction between solute and solvent?

2007-08-14 08:15:49 · 1 answers · asked by Somnath Singh 1

in 4 hours, i will be reporting on this..so please help me.. explain comprehensively if possible..THANKS>..

when you combine, postassium permanganate (KMnO4), Sulfuric acid ( H2SO4), water (H2O), and hrydrogen peroxide (H2O2), what peoduct will it yield? thanks!!!

2007-08-14 08:08:24 · 2 answers · asked by manny 1

2007-08-14 05:42:38 · 2 answers · asked by Anonymous

1.why does the formic acid with dilute sulfuric acid decolorized after having 3 drops of KMnO4?
2. why does oxalic acid with dilute sulfuric acid decolorized after having 1 drop of KMnO4?
3. why is the decolorization ocuured faster in oxalic acid than formic acid?
pls help me..... i need it badly...

2007-08-14 05:15:34 · 1 answers · asked by louie 2

2007-08-14 04:32:16 · 3 answers · asked by tauras t 2

2007-08-14 04:18:55 · 1 answers · asked by AlphaM 1

2007-08-14 03:56:07 · 4 answers · asked by raymond reyes l 1