Chemistry - August 2006

Please justify your answer/provide the calculations.

As a graduate chemist I want to see how many people will get it wrong, so don't worry about cheating with homework ... I am just curious how many people really understand pH.

2006-08-30 04:33:35 · 4 answers · asked by bellerophon 6

2006-08-30 04:24:05 · 3 answers · asked by Anonymous

is there any trace of water in regular gasoline?

2006-08-30 04:23:07 · 6 answers · asked by Jorge T 1

2006-08-30 04:22:14 · 1 answers · asked by Anonymous

2006-08-30 03:42:07 · 8 answers · asked by Anonymous

The kelvin scale has no unit. Every other measurement in temperature uses the 'degree' as the unit.

2006-08-30 03:36:49 · 9 answers · asked by wheez 1

How to get the symbol of the ions for an atom only by seeing the electron numbers?
Sodium Proton Number = 23
How to get the ionic symbols for sodium only by using that information?

2006-08-30 02:14:31 · 9 answers · asked by unquenchablethirst 2

2006-08-30 02:02:21 · 1 answers · asked by Anonymous

Sodium Proton Number = 23
How to get the ionic symbols for sodium only by using that information?

2006-08-30 02:00:08 · 2 answers · asked by unquenchablethirst 2

What is the relation between the proton number & arrangement of electrons in an ion and the symbols of the ions themselves? Thanks
E.g.
Al 2.8.3
Al+

2006-08-30 01:36:17 · 9 answers · asked by unquenchablethirst 2

i have the chemical equation for the reaction between hydrochloric acid and marble chips, but i don't know what the word equation is for it. I have managed to work out some, but i really do need help!
this is the chemical equation (the numbers should be smaller, but i couldn't do that on my keyboard!)
CaCO3(s) + 2HCL(aq) = CaCl2(aq) + H2O(l) + CO2(g)

2006-08-30 00:16:25 · 12 answers · asked by Anonymous

2006-08-29 23:52:16 · 4 answers · asked by patrick c 1

2006-08-29 22:27:57 · 6 answers · asked by Jhaz 1

2006-08-29 20:13:14 · 8 answers · asked by 4d@m_$av4g3 4

2006-08-29 19:21:27 · 20 answers · asked by noodlenmac0329 2

2006-08-29 18:06:23 · 7 answers · asked by noodlenmac0329 2

I already know PV=nRT, and how to calculate the gas ratios, stoichiometry of the moles of liquid --> gas, the increase in air pressure, and the (pie)(r)^2 Area of the piston. How much gasoline is squirted into each cylinder/stroke ???

2006-08-29 16:46:40 · 5 answers · asked by SmartoGuy 3

i need to find a useful website where that answer is and also about what is visible spectrum?

2006-08-29 16:21:21 · 7 answers · asked by Flyer 2

Similrer agencies

2006-08-29 16:19:37 · 2 answers · asked by Anonymous

hi,does anyone know the mechanism in the esterification of salicylic acid to form oil of wintergreen?like its synthesis or something

2006-08-29 16:14:38 · 3 answers · asked by theowlery_hedwig 2

So far I have only seen one, which got away. Is there is a way to get rid of any existing roaches that also prevents an infestation?
In addition, I want to use something that is non-toxic this way I can use it regularly without worring about my cats health.

2006-08-29 14:21:11 · 10 answers · asked by babycattos 4

a graduated cyclinder contains 20.0 ml of water. An irregular shaped object is placed in the cyclinder and the water rises to 31.2 ml mark. if the object has a mass of 54.8 g what is the density?

2006-08-29 14:01:20 · 5 answers · asked by Anonymous

2006-08-29 14:01:08 · 3 answers · asked by davescoolguitars 1

2006-08-29 13:46:22 · 4 answers · asked by dbanki2005 1

A student obtanied a clean dry glass- stoppered flask. She weighed the flask and stopper on an analytical balance and found the total mass to be 31.601 g. She then filled the flask with water and obtained a mass fpr the full stoppered flask of 60.735 g. From these data, and the fact that at the temperature of the laboratory the density of water was 0.9973 g/cm3, find the volume of the stoppered flask.
Mass of water=______________g-________g=_________g

2006-08-29 13:23:16 · 3 answers · asked by C.T. 2

a -ide.
b -ite.
c -ic.
d -ate.

2006-08-29 13:10:00 · 12 answers · asked by ncbabbeigh 1

i couldnt get the correct answer for this question


A log is known to be either oak or pine. It displaces 3.6 gal of water and weighs 27.0 lb. Is the log oak or pine? (density of oak = 0.9 g/cm3; density of pine = 0.4 g/cm3)

____g/cm3

2006-08-29 13:01:45 · 6 answers · asked by Krazyk78 1

2006-08-29 13:00:16 · 6 answers · asked by 6th Finger 2

2006-08-29 13:00:06 · 0 answers · asked by Anonymous

2006-08-29 12:25:47 · 7 answers · asked by Anonymous