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WHen 1.187g of a metallic oxide is reduced with excess hydrogen, 1.054g of the metal is produced. What is the metallic oxide?
At 50 degree's Celsius the vapor pressure for methanol and ethanol are 406 and 222 torr, respectively. Given a mixture at 50 degree's Celsius that contains 0.2 mol of methanol and 0.1 mol of ethanol, compute the partial pressures of each liquid an..
A galvanic cell is constructed that has a zinc anode immersed in a Zn(NO3)2 solution and a platinum cathode immersed in an NaCl solution equilibrated with Cl2 gas at 1 atm and 25 degrees centigrade.
A particular solution has a hydrogen ion concentration of 2.13 x 10-13 M. What is the pH of this solution?
Compute KP at this temperature If the pH of an aqueous solution is 8.23, what are the hydrogen- and hydroxide-ion concentrations of this solution?
Determine after how many days will one-sixteenth of a given amount of radon-222 remain and Determine the values of Delta E and Delta H for the system?
Solutions A and B are separated by a semipermeable membrane that is permeable to K+, but not Cl-. Initially, Solution A is 0.5 L of 100 mM KCl, and Solution B is 0.5 L of 1 mM KCl.
The oxidation of hyrogen by oxygen is one of the most-used reactions in fuel-cell technology. The overall reaction, which is given below, has a (Delta)G^o value of -474 kJ/mol.
A gas expands and does P-V work on the surroundings equal to 343 J. At the same time, it absorbs 159 J of heat from the surroundings. Calculate the change in energy of the gas.
what is the classification of each reactant as metal or nonmetal?
A weather balloon containing 605 L of He is released near the equator at 1.01 atm and 305 K. It rises to a point where conditions are 0.489 atm
The likely formula for the compound is Ni(N2H4)2(ClO4°2 where the hydrazine is a neutral ligand and the nickel is +2. If 10g of this compound reacted completely into its component elements, how many liters of gas would be produced at 298K and 1atm..
How many grams of F2 are needed to produce 120. g of PF3 if the reaction has a 78.1% yield?
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