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1) What is oxidation-reduction reaction? Balance the reaction between potassium permanganate with oxalic acid in the presence of excess sulfuric acid?
2) What is normality? What is the normality of 1M H2SO4 solution?
3) Calculate the concentration of each substance when mixing 40.0 mL of 0.1 M CH3COOH and 10.0 mL of 0.1 M CH3COONa?
4) for system 1, how do you get 75 mL of water?
What mass of CO2 is produced when 50.0 g of C2H4 reacts completely in the equation C2H4 + 3O2 = 2CO2 + 2H2O
You add 5 ml of 50 mM HCl to a .01 moles of buffer with a pKa of 6.2. The initial pH of the solution is 6.4. What is the pH after the acid is added.
When o-phthalaldehyde (1-2-benzenedicarbaldehyde) is treated with KOH, and the reaction mixture is acidified, a single neutral product, isomeric with the starting material
Perform a series of experiments for the reaction A?B+C and find that the rate law has the form rate = k[A]x. Determine the value of x in each of the following cases.
K for the system A(g) + B(g) 2C (g) is 4.0. In how many of the following experiments will equilibrium be realized through a net reaction forming C from A and B
How many moles of oxygen are needed to react with 5.0 moles of ammonia? In the above reaction, how many moles of water can be produced from 256 grams of oxygen?
Two 20.0g ice cubes at -12.0^degree C are placed into 235g of water at 25.0^degree C. Assuming no energy is transferred to or from the surroundings, calculate the final temperature of the water after all the ice melts
Assuming that a particular individual's stomach contains 1 quart of 0.1 M HCl, and that an antacid tablet contains as its active ingredient 500 mg of calcium carbonate, what would the final pH of this individual's stomach contents be after taking ..
A 74.6-g ice cube floats in the Arctic Sea. The temperature and pressure of the system and surroundings are at 1 atm and 0 degrees C. Calculate delta S(sys), delta S (surr), and delta S (univ) for the melting of the ice cube.
The combustion of oxalis acid in a bomb calorimeter yields 2816 J g^-1 at 25 degrees Celsius. Calculate a) Delta (c) U degrees and b) Delta (c) H degrees
Which of the following molecules do you think would be subject to the Pauli principle's effects on rotational levels
You were given an unknown which gave precipiates with all four test solutions, 1 M H2SO4, 0.25 M (NH4)2C2O4, 1M K2CrO4 and 1M CH3COOH and 1M Na2CO3. Which of the four groups IIA metal cations are deffinitely absent from your unknown?
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