Chemistry - September 2006

Since woodchips float on water. How would you find the volume of them in a graduated cylinder.

2006-09-05 06:16:25 · 4 answers · asked by Saber 1

I remember it involved placing aluminum foil in a nonreactive pan with water, the silver and I can not remember what else...

2006-09-05 06:04:08 · 6 answers · asked by cass 3

2006-09-05 05:40:44 · 3 answers · asked by himself202 1

2006-09-05 04:40:43 · 18 answers · asked by alanpringle2020@talk21.com 1

2006-09-05 04:36:17 · 6 answers · asked by landscaperweeks 1

2006-09-05 04:19:14 · 2 answers · asked by faradakiut 1

2006-09-05 04:05:43 · 2 answers · asked by sancho10111101111011101111101111 1

2006-09-05 03:51:39 · 7 answers · asked by blackboi 2

As carbonium ion is positively charged it should be attracted towards negative charge then how it is attracted towards nucleous ( +ve charge) ?

2006-09-05 03:45:31 · 4 answers · asked by Mihir Durve 3

a)nanometers
b)inches
c)picometers
d)meters

2006-09-05 03:31:18 · 6 answers · asked by chris j 1

2006-09-05 03:16:26 · 11 answers · asked by Anonymous

so what kind is it? its not anthrax, botulism, or incapacitating..

2006-09-05 03:07:53 · 5 answers · asked by helena2581 2

2006-09-05 03:03:51 · 12 answers · asked by appolo 1

2006-09-05 02:44:46 · 8 answers · asked by GhOsT 1

Please I need to find out about scientific apparatus any help would be really nice!

2006-09-05 02:43:31 · 3 answers · asked by Anonymous

can someone give me estimates on this...I cant really find many sites comparing the 2 and when one should be used over the other. I figured the only reason to use a flask would be if you need to stopper it and mix. And im not sure about their percisions.

Question 2. Examine a 250 mL beaker available in your drawer. Compare the precision of these pieces
of equipment with that of a graduated cylinder, pipette and buret. What is the maximum precision that can
be achieved by using the beaker and the flask? (example: nearest 10 mL, nearest 1 mL, nearest 0.1 mL,
nearest 0.01 mL etc). When should a beaker or Erlenmeyer flask be used to measure volumes?

2006-09-05 02:06:23 · 6 answers · asked by axcryingxshame 1

2006-09-05 01:41:46 · 3 answers · asked by hash 1

H2SO4 + 2NaOH --> Na2SO4 + 2H20

MαVα / MβVβ = 1/2 M=molarity α=acid
2(ΜαVα) = ΜβVβ V=volume β=base

Therefore 2 mole of sulphuric acid is required to neutralise 1 mole of sodium hydroxide ??????????

Is This Logical??????

2006-09-05 01:26:39 · 3 answers · asked by Omega_sages 2

2006-09-05 01:08:12 · 4 answers · asked by koibito 1

Just wondering. CO2 is covalent isn't it? How hard would it be to separate the oxygen and the carbon. Would introducing an electrical current help, or would that not aid it in any way? By the way, my grasp of chemistry is dodgy to say the least, incase you hadn't guessed.

2006-09-05 01:01:44 · 9 answers · asked by Chris H 3

wat gives smell to an object..for instance when electron jump from excited state to original state light is emitted..likewise wat gives smell 2 a thing...

2006-09-05 00:23:42 · 15 answers · asked by sarath 1

and what is the chemistry of the hair?

2006-09-05 00:17:02 · 4 answers · asked by Anonymous

How many grams of O2 are required to burn 5.15 gal. of C8H18?

The complete combustion of octane, C8H18, a component of gasoline, proceeds as is shown below.

2 C8H18(l) + 25 O2(g) 16 CO2(g) + 18 H2O(l)

(a) Octane has a density of 0.692 g/mL at 20°C. How many grams of O2 are required to burn 5.15 gal. of C8H18?

2006-09-04 23:59:42 · 4 answers · asked by cheezzznitz 5

2006-09-04 23:17:50 · 13 answers · asked by nimishv 1

1.2 x 10^4 atoms of Si to grams?

2006-09-04 23:07:55 · 2 answers · asked by cheezzznitz 5

Why and when did these processess cease?

2006-09-04 21:52:04 · 5 answers · asked by pinkflyblooming 2

Aestivation of sulphar from sulphar drops

2006-09-04 21:03:51 · 2 answers · asked by your 1

There are also some unknown elements like unseptium(spelling may be wrong). How can they be discovered if they have no existence?

2006-09-04 20:58:53 · 5 answers · asked by Anonymous

I got this from a second grade test.

2006-09-04 20:08:59 · 11 answers · asked by Anonymous

2006-09-04 20:02:12 · 2 answers · asked by lee h 1