Chemistry
Let's see. If we dilute 0.1(pH = 1) to 0.01 (pH = 2), is that a decrease in pH? :-) I think it can't be a, b, or c.
Chemistry
yes, although that sounds like a VERY concentrated acid to me.
chemistry
This is a limiting reagent. I know that because amounts are given for BOTH reactants. C3H8 + 5O2 ==> 3CO2 + 4H2O mols C3H8 = 4.4/molar mass = about 0.1. mols O2 = 16/molar mass = about 0.5 Convert each to mols H2O, then to grams H2O. 0.1 mol C3H8 x (4 mols H2O/1 mol C3H8) =...
Chemistry
kuldeep is right with increasing B to increase C but wrong about the T. Increasing T will drive the reaction to the left which decreases C.
Chemistry
Remember the other post. If you want C to increase you must make the rxn shift to the right. Increase A will do that, increase B will do that, decrease D will do that, decreasing the temperature will do that. Increasing pressure shifts the rxn to the side with fewer mols and t...
chemistry
How advanced is this class. If it is very beginning, I would answer, .....H2SO4 ==> 2H^+ + SO4^2- So 0.4M = 0.8M H^+. If this is not a VERY VERY beginning class, that answer is not right. Why? Because the second ionization of H2SO4 is not 100% as is the first. .....H2SO4 ==...
Chemistry
No. You need to know the solubility rules. Here is a simplified set. It can't be d because there is no CO3 in the system. http://www.files.chem.vt.edu/RVGS/ACT/notes/solubility_rules.html
Chemistry
Le Chatelier's Principle says that when a system in equilibrium is disturbed that the system will try to undo what we've done to it. So if you add acetate to it the system will try to use it. How can it do that. By shifting to the left. That increases the CH3COOH and i...
chemistry
pH = 10.17. pOH = 14-10.17 = 3.83 pOH = -log(OH^-) 3.83 = etc. OH^- = about 1.4E-4 but that's an estimate. ...........BH + H2O ==> BH2^+ + OH^- I..........x............0........0 C.........-y............y........y E.........x-y...........y.........y Kb = 7.8E-7 = (BH2^+...
chemistry
You are right that the anode is on the left and the cathode on the right. But the cell notation is written as they appear from left to right as you go from the anode, across the salt bridge, and to the cathode. In the cell you will have Pt on the left and Pt on the right. On t...
Pages: <<Prev | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Next>>
For Further Reading
