Chemistry - March 2007

I work as a chemical engineer, and I'm searching for good chemistry jokes to tell the chemists I work with. I already know the ones, "I'm positive!", "For you, no charge." and "Ferrous wheel". Does anybody know any other good ones?

2007-03-07 10:33:41 · 3 answers · asked by Bigsky_52 6

Some NOCl(g) at 1.0 atm is placed in an empty reaction vessel. At equillibrium, the total pressure is 1.135 atm. What is the Kp for the reaction below assuming partial pressures are in atmospheres?

Can someone help me out... thanks in advance!

2NOCl(g) --> 2NO(g) + Cl2(g)

2007-03-07 10:21:41 · 1 answers · asked by Anonymous

2007-03-07 10:17:17 · 2 answers · asked by peggy c 1

The values of n are orbitals so they are assumed to be infinite sig figs. Also, R is a constant so it too is infinite sig figs. Does this mean wavelength is known to infinite sig figs? That makes little sense

2007-03-07 10:10:31 · 1 answers · asked by Digi-Mazi 1

What is the percent by mass of a sample of ocean water that is found to contain 1.36 g of magnesium ion per 1000.0 ml of water?

How do you answer this????

2007-03-07 10:06:57 · 5 answers · asked by hello there 2

i just want to know how to do it

2007-03-07 10:04:21 · 3 answers · asked by †ღChristian♥Girlღ† 2

A kaon meson has a mass of 493 MeV/c2. What is this in atomic mass units?

2007-03-07 10:01:10 · 2 answers · asked by Jessica H 4

How would I find out what spectral bands would appear on the IR spectra for trimyristin and myristic acid?? I'm looking at their molecular structure and have no clue where to begin.. I would appreciate any help! Thanks.

2007-03-07 09:47:17 · 4 answers · asked by donna 2

If you have 85 liters of argon gas at 164 Celsius, and the pressure is 687 torr, how many moles of argon are there?

i don't really get this question, I appriciate any help, thanks

2007-03-07 09:34:33 · 2 answers · asked by starttoday 3

How many g of zinc metal will react with 24.5 Ml of 2.0 moles hydrochloric acid (HCl), forming zinc chloride?

How do you do this? Im totally lost.

2007-03-07 09:27:57 · 2 answers · asked by Anonymous

2007-03-07 09:22:13 · 1 answers · asked by HowDoUGetOut 1

I'm doing a project but I can't find some things about silicon. I need to know the texture, malleability and ductility of just pure silicon. Please don't start copy and pasting other stuff like hardness and symbol name, I've already got those.

Thanks

2007-03-07 09:15:00 · 2 answers · asked by Lilaznboi2011 2

the complete combustion of ethanol produces carbon dioxide and water according to the following chemical equation: C2H5OH(l) + 3O2(g) + 3H2O(l)

how many grams of carbon dioxide are produced when 1.2 moles of water are produced?

2007-03-07 09:14:38 · 3 answers · asked by marilyn b 1

2007-03-07 08:55:30 · 4 answers · asked by Anonymous

How many grams of sulfur (S8) would have to be dissolved in 120.0 g of carbon tetrachloride to lower the freezing point by 1.90 degrees celsius?


kf = 29.8 K-kg/mol for CCl4

2007-03-07 08:48:39 · 2 answers · asked by Christie 1

If 13.30 grams of LiCl are dissolved in water to make a solution of 0.104 L, the density is found to be 1.094 g/cm3. Calculate the molality of the solute.

i keep following the same steps and im getting the wrong answer, please help

2007-03-07 08:47:05 · 2 answers · asked by Christie 1

2007-03-07 08:39:50 · 2 answers · asked by Anonymous

What are some interesting facts about the way helium is used. Please don't tell me that the sun converts it to energy or that it makes your voice squeaky. The more the better. Thanks!

2007-03-07 08:34:07 · 3 answers · asked by MLBfreek35 5

Please explain it well

thanx~

2007-03-07 08:21:50 · 3 answers · asked by Anonymous

hey does anyone have a site or any information on the environmental impacts (both good and bad) of extracting iron from its ores?? i really cud use any help as i have a presentation and cant seem to find any information online, pleezz be serious i do not want silly answers

2007-03-07 07:57:34 · 1 answers · asked by wacko 3

2007-03-07 07:38:36 · 5 answers · asked by Paki Kuri 1

2007-03-07 07:35:57 · 6 answers · asked by Paki Kuri 1

2007-03-07 07:22:06 · 6 answers · asked by megapurt 1

please answer quick i need the answer by today!!!!!!!!! I'v already got like TEA COFFE MILK AND A FEW MORE BUT I NEED WAY MORE SO I CAN GET A BUNCH OF COLORS ON A Universal indicator WHAT HOUSEHOLD ITEMS CAN I USE??????????

2007-03-07 07:10:14 · 3 answers · asked by Anonymous

what mass of AgCl will precipitate when .050 L of a 0.05000 M solution of AgNO3 reacts with 25.0 mL of .0330 M Nacl

balanced equation:
AgNO3+NaCl=NaNO3+AgCl

please help me

2007-03-07 07:05:20 · 3 answers · asked by molly 1

2007-03-07 06:59:39 · 4 answers · asked by stonedwolfe420 1

UV absorbers used in paint might be useful

2007-03-07 06:47:58 · 1 answers · asked by Anonymous

These are chunky crystals stuck to the glass, are cloudy and are above the surface of the liquid. This is a brand new, unopened bottle of 25:24:1.

2007-03-07 06:41:16 · 1 answers · asked by Allison C 2

Anyone got any ideas other then doing experiments? Thanks

2007-03-07 06:37:43 · 6 answers · asked by Eriec 3

2007-03-07 06:27:02 · 14 answers · asked by Anonymous