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What is the value of Kc for the following reaction at equilibrium? CO2(g) +H2(g)<>CO(g) + H20(g) if [CO]=0.20M, [H20]=0.30M, [Co2]=0.30M. and [H2]=0.033M
A specific steroid has ?max = 213 nm and molar absorptivity ? = 11,500. What is the concentration of the compound in a solution whose absorbance at 213 nm is A = 0.060 with a sample pathlength of 1.00 cm?
An aqueous antifreeze solution is 35.0% ethylene glycol (C2H6O2) by mass.
The heat of fusion is 4.6 kJ/mol and the heat of vaporization is 46.0 kJ/mol. Finally, the specific heats of the solid, liquid and gas are, respectively 2.1, 3.2 and 1.8 J/g oC.
Silver chloride, often used in silver plating, contains 75.27% Ag.Calculate the mass of silver chloride in grams required to make 4.4 grams of silver plating.
15.00 g of solid ammonium hydrogen sulfide is introduced into a 500.-mL flask at 25°C, the flask is sealed, and the system is allowed to reach equilibrium. What is the partial pressure of ammonia in this flask if Kp = 0.108 at 25°C for
Steam distillation may be used to separate a mixture of p-nitrophenol and o-nitrophenol.
evaluate its purity and to determine whether it might be identical to a given sample of an illegal drug, a white crystalline solid. Clearly explain what you would do, why you would do it, and how you interpret your results
Calculate the volume of glacial acetic acid (17.6 M) and weight of sodium acetate (mm = 82.03) that is required to make 102 ml of 0.2 M buffer at pH 4.85. The Ka of acetic acid is 1.4 x10^-5.
The combustion of 13.2 g of propane, C3H8 (g), liberates 6.6x10^3 kJ of heat. What is the enthalpy change (kJ) for the reaction?
Provide the reaction mechanism when p-acetaminobenzensulfonic chloride reacts with water
Write the systematic (IUPAC, or CA) names for the amines shown below. The names should have the format alkanamine.
An electron has an uncertainty in its position of 594pm . What is the uncertainty in its velocity?
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