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April 18, 2014

Search: Chemistry2

Number of results: 21

Chemistry
It depends on the particular butylamine (isomer...is the amine primary or secondary)..see the last paragraph of http://chemistry2.csudh.edu/rpendarvis/aminrxn.html
Saturday, December 6, 2008 at 12:37am by bobpursley

Chem
I think this will answer your question. Note that "Do not use OH^- as the nucleophile." http://chemistry2.csudh.edu/rpendarvis/AlkeneAddn.html
Thursday, July 22, 2010 at 10:44pm by DrBob222

Chemistry
This board will not accommodate drawings but here is a site I found that may help. http://chemistry2.csudh.edu/rpendarvis/carbstr.html#bondline
Tuesday, April 3, 2012 at 1:53pm by DrBob222

chemistry2
I will be happy to critique your thinking.
Wednesday, May 11, 2011 at 10:29pm by bobpursley

Chemistry2
A lot of typing with symbols etc. How can you do on your own? Post what you know.
Saturday, November 27, 2010 at 5:58pm by DrBob222

Chemistry2
Well I'm trying to figure out the chemical equation
Saturday, November 27, 2010 at 5:58pm by Adam

chemistry2
Daniel, show some work. I am not going to give you the answers.
Wednesday, May 11, 2011 at 10:29pm by bobpursley

Chemistry 1
(Broken Link Removed) http://chemistry2.csudh.edu/newlechelp/rxnbalancing.html http://misterguch.brinkster.net/eqnbalance.html
Tuesday, May 13, 2008 at 8:49pm by DrBob222

Chemistry2
K=e raised to -(-106.4 kj/mol)/(8.314e-3kj/mol*298k) K=4.476e18 is what I got.
Wednesday, March 14, 2012 at 11:51pm by Coolguy

chemistry2
Please help I think the moles are already given so molality=mol of solute/kgofsolven so i think 12.0/ I am stuck also
Wednesday, May 11, 2011 at 10:29pm by Tj

chemistry2
if 160g of Al reacts with O2 to produce 260g of Al2O3.calculate the theoretical yield and the percent yield 4Al+3O2 2Al2 O3
Wednesday, May 5, 2010 at 6:53pm by chris

college chemistry2
calculate the molarity of a solution containing 20.0g of sulfuric acid in 500 ml of solution?in a solving problem form?
Sunday, August 5, 2012 at 5:29am by raymond benzon

College Chemistry2
A solutionof 2.50g of a compound having the empirical formula C7H6O2 in 25.0g of benzene is observed to freeze at 4.3 degree C.Calculate the molar mass of the solute and its Molecular formula
Saturday, February 5, 2011 at 11:31pm by Anonymous

chemistry2
Hydrochloric acid is sold as a concentrated acqueous solution. If the molarity of HCl is 12.0 and its density is 1.18 g/ml. calculate A) MOLALITY B)THE % BY MASS OF HCl in the solution
Wednesday, May 11, 2011 at 10:29pm by Daniel Forero

college chemistry2
mol wt of H2SO4 = 98g/mole so, you want mol/L, so 20g * 1mol/98g / 0.5L = .41 mol/L = .4M you can massage that int whatever "solving problem form" you require.
Sunday, August 5, 2012 at 5:29am by Steve

Chemistry2
Mg|Mg^+2||Au^+3|Au 3Mg(s) + 2Au^+3 ==> 2Au(s) + 3Mg^+2
Saturday, November 27, 2010 at 5:58pm by DrBob222

Physical Chemistry2
One mole of a van der Waals gas with a=15.0 l^2 atm mol^−2 and b=0.015 l mol^−1 is expanded reversibly and isothermally from 1 atm to 0.5 atm at a temperature of 300 K. Calculate w for this process, and compare it with that required to expand an ideal gas between ...
Monday, September 29, 2008 at 3:57pm by Amber

Chemistry2
An electrochemical cell is created using gold and magnesium half-cells. a. Determine which half-cell will undergo oxidation and which will undergo reduction, identify anode and cathode, and calculate the voltage for the cell. You do not need to diagram the cell. b. If the mass...
Saturday, November 27, 2010 at 5:58pm by Adam

Chemistry2
WO3 (s) + 3 H2 (g) -> W (s) + 3 H20 (g) Tungsten is obtained commercially by the reduction of WO3 with hydrogen according to the equation above. The following data related to this reaction are available. DeltaH(kilojoules/mole) for WO3 is -839.5. DeltaH for H20(g) is -241.6...
Tuesday, November 30, 2010 at 10:38am by Jeffery

chemistry2
1. You have the balanced equation. 2. Convert 160 g Al to moles. moles = grams/molar mass. 3. Using the coefficients in the balanced equation, convert moles Al to moles Al2O3. 4. Now convert moles Al to grams. g = moles x molar mass. This is the theoretical yield in grams. 5. ...
Wednesday, May 5, 2010 at 6:53pm by DrBob222

College Chemistry2
Look up normal freezing point benzene. Look up freezing point constant for benzene (Kf = ?). delta T = Kf*molality Solve for molality. molality = moles/kg solvent Solve for moles moles = grams/molar mass Solve for molar mass. Find the mass of the empirical formula. (molar mass...
Saturday, February 5, 2011 at 11:31pm by DrBob222

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