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When 28.6 kg of Fe2O3 react with 17.2 kg of CO and 6.3 kg of Fe are recovered, what is the percent yield for the reaction?
A certain quantity of a gas occupies 61.3 mL at 68 ?C. If the pressure remains constant, what would be the volume of the gas at 128 ?C?
A news station in your local area has predicted a severe winter storm on the way and they want to make sure the streets don't freeze over. Which solution should they use to put on the streets to lower the freezing point, MgCl2 or NaCl, and explain..
If 315 ml of hydrogen gas is collected over water at 25 degrees C at a total pressure of 742 mm Hg , how many grams of Zn reacted?
Does Gibbs energy of a gas at room temperature increase or decrease with increasing pressure and constant entropy
Determine whether each of the following salts will form a solution that is acidic, basic, or pH-neutral.
What mass of HClO4 should be present in 0.600 L of solution to obtain a solution with a pH of 2.50?
For the reaction: PbCl2(s) ? Pb2+(aq)+2Cl1-(aq), what is Q* when 3.9 mL of 0.080 M lead nitrate is added to 13 mL of 0.020 M sodium chloride? Ksp of lead chloride is 1.6 x 10-5 M3.
One a cold day a person takes a breath of 450 ml of air at a pressure of 745 mm Hg and room temperature of 21oC. What is the volume of this air in the lungs at 37oC and 758 mm Hg?
A 15.0-g sample of a hydrocarbon is placed in a balloon at 1.00 atm and 25°C, and the volume of the balloon is 12.2 L. The hydrocarbon is 79.89% carbon and 20.11% hydrogen by mass.
What is the molecular formula of the compound 2,3-dimethyl-4-cyclopentyl-5-ethyldecane?
Substrates and reactive groups in an enzyme's active site must be precisely aligned in order for a productive reaction to occur. Why, then, is some conformational flexibility also a requirement for catalysis
Determine the magnitude of the partial charges in HBr given that the bond length is 1.41 angstroms and the dipole moment is 0.82 debye.
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