Calculate ΔG° for the following balanced redox reaction. E°=-0.47V Pb2+(aq) + Cu(s) → Pb(s) + Cu2+(aq)

The solubility product for CaCO3 is written as ________, where s is the molar solubility.

Sodium-22 undergoes electron capture. Identify the resulting isotope.

Place the following in order of increasing entropy at 298 K. Ne Xe He Ar Kr

Barbitol (106.12 g/mol) is a simple drug. What would be the freezing point of a solution prepared by dissolving 75.00 g of barbitol in 850.0 g of ethanol?  

A KCl solution is prepared by dissolving 25.0 g KCl (74.55 g/mol) in 250.0 g of water at 25°C. What is the vapor pressure of the solution if the vapor pressure of water at 25°C is 23.76 mm Hg?

Uranium-235 decays by alpha emission. What isotope is also produced by this transformation?

Which of the following aqueous solutions will have the highest boiling point?

The rate constant for the second order reaction 3A → 4B is 6.00 × 10–3 M–1 min–1. How long will it take the concentration of A to drop from 0.75 M to 0.25 M?  

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.  Mg2+(aq) + 2 e⁻ → Mg(s) E° = -2.38 V Cu2+(aq) + 2 e⁻ → Cu(s) E° = +0.34 V