Author: Anonymous

A reaction has a rate law of rate = 0.014 L/(mol• s) [A]2. What will be the concentration of A after 3.0 hours if the initial concentration is 0.025 M?  

Which of the following are listed in order of increasing standard molar entropy?

In the equation below, what particle or type of radiation needs to be included to balance the equation? 234Th → ? + beta particle

Nickel can be plated from aqueous solution according to the following half reaction. How long would it take (in min) to plate 29.6 g of nickel at 4.7 A? Ni+(aq) +  e⁻ → Ni(s)

Which of the following groups consist of salts that all form basic solutions in water (Ac = acetate)?

Consider the following reaction at equilibrium. What effect will adding 1 mole of Ar to the reaction mixture have on the system? 2 H2S(g) + 3 O2(g) ⇌ 2 H2O(g) + 2 SO2(g)

A solution is prepared by adding 30.00 g of lactose (milk sugar) to 110.0 g of water at 55°C. The partial pressure of water above the solution is ________ torr. The vapor pressure of pure water at 55°C is 118.0 torr. The MW of lactose is 342.3 g/mol.

At room temperature and 1 atm, the vapor pressure of isobutyl benzoate is 237 mm Hg, and the vapor pressure of vinyl acetate is 72.5 mm Hg. What is the total vapor pressure over a solution composed of these two substances when Xisobutyl benzoate = 0.850.

Determine the molality of an aqueous solution prepared by dissolving 0.112 moles of LiCl in 13.7 moles of H2O.

Use the standard half-cell potentials listed below to calculate the standard cell potential for a galvanic cell at 25°C made from those materials.  Cl2(g) + 2 e⁻ → 2 Cl⁻(aq) E° = +1.36 V Fe3+(aq) + 3 e⁻ → Fe(s) E° = -0.04 V