Chemistry - November 2006

my professor gave me a worksheet that i have 2 fill out and it's all about the element vanadium. I went to chemicalelements.com and it gave me all the answers- except 2. I need to find out what is the symbol origin (v) and what are other names for vanadium. Please help.

2006-11-11 09:10:54 · 6 answers · asked by ilikpie2nit 1

Use the phase diagrams in Chapter 11 of your text to determine which of the following are true statements.


a) Above 31oC and 73 atm CO2 is in its supercritical state


b) For water the melting temperature increases as the pressure increases


c) For CO2 the melting temperature increases as the pressure increases


d) CO2 at 50oC and 2.5 atm is in the vapor state

NOTE THERE IS MORE THAN ONE ANSWER

2006-11-11 08:19:54 · 2 answers · asked by MARK 2

what is the result of hydroboration of propene followed by oxidation with HOOH (in basic conditions)?
thanks

2006-11-11 07:43:58 · 4 answers · asked by Anonymous

i have the number of moles i just don't know what to do next...
A volatile compound contains carbon, hydrogen and chlorine. A 256mL flask at 372.15 kelvin and 748 torr contains 1.097g of the compound. Calculate the molar mass of the compound. Use the ideal gas law to find moles first.

the number of moles =.00825 mol what do i do?

2006-11-11 07:42:53 · 5 answers · asked by jdaman12345 2

Which of the following four statments are true for real gases and the corrections that must be made to the Ideal Gas Law?

a) the constant b in van der waals equation corrects for volume of real particles

b) the constant a in van der waals equation corrects for attractions between particles

c) the attraction of particles increases observed pressure

d) particles have finite volume

note may be more than one answer

2006-11-11 07:42:31 · 3 answers · asked by MARK 2

and what would citric acid be?

2006-11-11 07:41:09 · 5 answers · asked by Anonymous

Also, why must they not be too close in value?

2006-11-11 07:37:38 · 1 answers · asked by Anonymous

If an organic substance is extracted from water, the effectiveness of the extraction is greatly impoved by saturating the water layer with sald before extracting. Why is this?

2006-11-11 07:35:16 · 2 answers · asked by Anonymous

1) chlorocyclopentane
2) chloromethane
3) 1-chloro-1-pentane
4) 3-chloro-1-pentane
5) chloromethylbenzene
6) 2-chloro-2-methylbutane
7) 1-chloropentane

2006-11-11 07:31:41 · 2 answers · asked by Anonymous

Urea, (NH2)2CO is prepared by reactin ammonia with carbon dioxide.
2NH3 + CO2 = (NH2)2CO +H2O
If a total of 2.26x10^25 molecules of NH3 was used, how many grams of urea will be produced?

2006-11-11 07:31:00 · 1 answers · asked by Lynn 1

and which one of these would citric acid be?

2006-11-11 07:27:12 · 3 answers · asked by Anonymous

2006-11-11 07:25:32 · 2 answers · asked by Anonymous

2006-11-11 07:24:58 · 3 answers · asked by bballgirljv 1

2006-11-11 07:24:27 · 5 answers · asked by bballgirljv 1

Aspirin (C9H8O4) can be made in the laboratory by reacting salicylic acid (C7H6O3) with acetyl chloride (C2H3ClO). What mass of aspirin is produced by the reaction of 40.0g of salicylic acid and 30.0g of acetyl chloride?
C7H6O3 + C2H3ClO =C9H8O4 +HCl

2006-11-11 07:22:04 · 1 answers · asked by Anonymous

please explain process.

2006-11-11 07:19:13 · 1 answers · asked by MeMe123 2

2006-11-11 07:18:58 · 2 answers · asked by aaronwblue 1

2006-11-11 07:17:12 · 2 answers · asked by Anonymous

2006-11-11 07:15:46 · 1 answers · asked by Anonymous

Could ye please explain what carbon dioxide is in detail ?? And please use small ish words its for my little sisters project at school. And if ye can wil ye include how it can save your life and kill you ?? Thanks alot !!

2006-11-11 06:56:36 · 5 answers · asked by Pretty-princess 2

2006-11-11 06:46:53 · 1 answers · asked by great mind 1

2006-11-11 06:37:50 · 2 answers · asked by solankipavankumar 1

I would also like to be able to copy and paste the structural formulae or the actual 3D shapes of the molecules into Microsoft Word. I am an AS Level (year 12) chemistry student, but I have only been studying since the beginning of September. I have (of course) done GCSE chemistry, but I don't want something overly complicated. Free would be nice too! :P

2006-11-11 06:37:07 · 1 answers · asked by Anonymous

Son's homework!

2006-11-11 06:32:40 · 16 answers · asked by Anonymous

A student needs 625g of Zinc Sulfide. He can synthesize is using the reaction: Na2S + Zn(NO3)2 = ZnS + 2NaNO3

How many grams of zinc nitrate is needed if he can make the zinc sulfide in 85% yield. Assume he is using excess of sodium sulfide.

2006-11-11 06:11:56 · 1 answers · asked by Onecolegirl 2

2006-11-11 06:05:22 · 14 answers · asked by Anonymous

any food like fruits veggies or any thing.Any topics?

2006-11-11 06:03:14 · 2 answers · asked by LaLa 1

all the electrons posses same charge and they are attaracted by protons in the nucleus so why the electrons in the element are not arrange or present in the same shell ?

2006-11-11 05:32:02 · 8 answers · asked by Anonymous

How do you convert gas to liquid?

2006-11-11 05:26:23 · 9 answers · asked by Cyara H 1

I need a list of about 40 common compounds that I can have my students find their structural formula. The trick is to make it not too easy or too difficult. Examples might be caffene, salisylic acid, Paradichlorobenzene. Can you come up with a few more?

2006-11-11 05:20:42 · 4 answers · asked by The Cheminator 5