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What mass of copper would be produced by the reduction of copper(II) ions during passage of 1 ampere of current through a solution of copper(II) sulfate for 51 minutes?
Determine the molecular formula of a compound which has a empirical formula of CH3 and a molar mass of 60.0 g/mol.
By what factor (how many times) will the rate constant increase when the temperature is raised from 10°C to 28°C?
A sample of ethanol (C2H5OH) has a mass of 38.6 g. How many carbon atoms does the sample contain?
Calculate the pH of a solution made by adding 42 g of sodium acetate, NaCH3COO, to 16 g of acetic acid, CH3COOH, and dissolving in water to make 300. mL of solution.
Determine the new pressure of the gas and express your answer in Pa
Compute the mass of air in an air-filled tire and the also determine the mass of He in a helium-filled tire
A substance has a molar mass of 60 g/mol with 40.0 percent carbon, 6.7 percent hydrogen, and 53.3 percent oxygen. What is its empirical formula?
Solve Virial equation (the virial equation expanded in 1/ Vm )are expansions in p and 1/Vm,respectively
Determination of the partial pressures of the gases - Find the partial pressure of each of these gases in the final product mixture.
The boiling point of a solution containing 10.44 g of an unknown nonelectrolyte in 50.00 g of acetic acid is 159.2°C. What is the molar mass of the solute?
An aqueous solution of KI has a freezing point of -1.70 C and an osmotic pressure of 26.5 atm at 25.0 C. What is the density ?
Calculate the pH of a buffer solution obtained by mixing 400.0 mL of 0.200 M acetic acid solution and 100.0 mL of a 0.300 M sodium hydroxide solution.(The pKa of Acitic Acid, CH3OOH is 4.74)
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