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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  

Suppose 62.0% of a sample of radioactive polonium-218 remains after 2.14 minutes. Estimate the half-life of Po-218.

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

Radium-226 is formed as a product when which isotope undergoes β+ emission?

iodine-131 has a t1/2 = 8.0 days A sample of iodine-131 initially emits 9.95 × 1018 β particles per day, how long will it take for the activity to drop to 6.22 × 1017 β particles per day?