Chemistry - September 2006

2006-09-05 15:32:54 · 1 answers · asked by JoeSalsa 2

1. 54.25 in. x 2.54 mm/cm
2. (9.8547 x 10^6 cm) (10 mm/cm) (1 m/ 1000mm)

2006-09-05 15:27:50 · 1 answers · asked by Anonymous

1. 11450067 mm^3
2. 12.0058 cm^3
3. 24.251 g
4. 1.845 x 10^3 kg
5. 10.868 g
6. 0.00030506 mol
7. 1.560 mL
8. 11.35000 g
9. 35.3 nm

2006-09-05 15:23:49 · 2 answers · asked by Anonymous

i need the one with the lowest density

2006-09-05 15:19:35 · 9 answers · asked by DAWN M 1

2006-09-05 14:39:12 · 7 answers · asked by baby cat 1

matter

2006-09-05 14:34:27 · 4 answers · asked by tobeez 1

2006-09-05 14:13:55 · 2 answers · asked by Marilyn A 1

2006-09-05 13:24:53 · 4 answers · asked by Anonymous

A school boy wanted this for performing in his school but I couldn't suggest any.

2006-09-05 13:22:01 · 9 answers · asked by Hobby 5

HOW would you separate the components of a mixture of ......benzoic acid and Na2SO4 and recover the two separated substances???


When

SOLUBLE IN:
Benzoic Acid
.........cold water = NO
.........hot water = YES
.........3M HCl = NO
.........3M NaOH = Yes
Mg(OH)2
.........cold water = NO
.........hot water = NO
.........3M HCl = Yes
.........3M NaOH = NO


Na2SO4
.........cold water = YES
.........hot water = YES
.........3M HCl = YES
.........3M NaOH = Yes

Zn(OH)2
.........cold water = NO
.........hot water = NO
.........3M HCl = YES
.........3M NaOH = Yes

Could you separate the components of a mixture of benzoic acid, Mg(OH)2 and Na2SO4 by using only cold water and 3M HCl ??? How could I do this???

2006-09-05 12:37:10 · 1 answers · asked by Anonymous

give me the method and the propertythat allows me to separate it. ex. oil and water mixture: property: oil floatings on water, method: take a straw and poke through the oil layer to suck out the water.
thanx

2006-09-05 12:17:02 · 13 answers · asked by debbie 2

What exactly are K values? Like Kp, Ka, Kc, Kw...

What is their relevance to equilibrium reactions?

2006-09-05 12:15:13 · 2 answers · asked by RED MIST! 5

How do find this answer?

2006-09-05 12:02:38 · 3 answers · asked by RED MIST! 5

Got ink on clothing when an overlooked ink pen broke in the washer

2006-09-05 11:54:04 · 5 answers · asked by Carol H 1

i not able to categorie the fire flame material and its properties it is costitunt of atoms and particles such as different material , i didnt mean heat but the flame it self

2006-09-05 11:40:19 · 10 answers · asked by pluto 1

I need some example
About Homogeneous
Heterogeneous
Compounds

2006-09-05 11:28:00 · 5 answers · asked by Red Eye 2

For this reaction, calculate the partial pressure of Br2 if p(NO) = 2.0 atm and, P(NOBR) = 5 atm, and Kp = 9.182.

NO(g) + Br2(g) <-> NOBr(g).

And please give a detailed description of how you do it.

2006-09-05 11:23:54 · 2 answers · asked by RED MIST! 5

2006-09-05 11:23:14 · 6 answers · asked by vballchic3101 2

2006-09-05 10:03:20 · 8 answers · asked by PI Whore 1

2006-09-05 10:02:23 · 12 answers · asked by PI Whore 1

2006-09-05 09:27:50 · 2 answers · asked by Anonymous

2006-09-05 09:05:19 · 8 answers · asked by steve b 1

this is my chemistry homework again and you guys seem like boffins and i really am not unfortuatley so thanx!!! ;)

2006-09-05 09:01:59 · 13 answers · asked by prittykitty100 1

what are the problems associated with, e.g scales, clogging of pipes

2006-09-05 08:54:07 · 4 answers · asked by LUNGI 1

please help me this is for my chemistry homework and i have no idea my brother can't be bothered to help me he's got his headphones on too lol. thanx!

2006-09-05 08:27:49 · 5 answers · asked by prittykitty100 1

2006-09-05 08:25:06 · 13 answers · asked by JIM D 1

Will this produce any dangerous reactions or fumes?

Love, Jack.

2006-09-05 08:15:51 · 7 answers · asked by Anonymous

a) 0.09 M urea
b) 0.05 M CaCl2
c) 0.04 M MgSO4
d) 0.005 M NaCl

The M is molarity correct? Heres how we did it in class

CaCl2 breaks up into Ca + 2Cl so .05x3 = .15M

same with the otheres and the last value are in order of

CaCl2 = .15M
urea = .09M
Mg2SO4=.08M
NaCl = .010M

from least to greatest, so is the answer NaCl or CaCl2, I believe he said it was NaCl lower concentration make freezing point go up?

I also have a boiling point question of the same effect so does lower concentration also make boiling point go up?

2006-09-05 06:29:47 · 7 answers · asked by axcryingxshame 1

2006-09-05 06:21:03 · 6 answers · asked by sparky 1

2006-09-05 06:19:18 · 3 answers · asked by Michelle M 1