Author: Anonymous

Calculate Ksp for PbI2 at 25°C based on the following data:Species                       ∆G0f, kJ/mol Pb2+ (aq)                        -24.4I- (aq)                              -51.6PbI2  (s)                           -173.6

A 10.0-mL sample of 0.75 M CH3CH2COOH is titrated with 0.30 M NaOH. What is the pH of the solution after 22.0 mL of NaOH have been added to the acid? Ka = 1.3 x 10–5

Give the expression for the solubility product constant for Ca3(PO4)2.

Calculate Ksp for PbI2 at 25°C based on the following data:Species                       ∆G0f, kJ/mol Pb2+ (aq)                        -24.4I- (aq)                              -51.6PbI2  (s)                           -173.6

A lab technician adds 0.015 mol of KOH to 1.00 L of 0.0010 M Ca(NO3)2. Ksp = 6.5 x 10–6 for Ca(OH)2. Which of the following statements is correct?

Which of the following substances has the greatest solubility in water?

Consider the reaction: N2(g) + 3 F2(g) → 2 NF3(g) ΔH° = -249 kJ and ΔS° = -278 J/K at 25°C Calculate ΔG° and state whether the equilibrium composition should favor reactants or products at standard conditions.

A saturated solution of calcium hydroxide, Ca(OH)2, is in contact with excess solid Ca(OH)2. Which of the following statements correctly describes what will happen when aqueous HCl (a strong acid) is added to this mixture, and system returns to equilibrium? For Ca(OH)2, Ksp = 6.5 x 10-6

A lab technician adds 0.015 mol of KOH to 1.00 L of 0.0010 M Ca(NO3)2. Ksp = 6.5 x 10–6 for Ca(OH)2. Which of the following statements is correct?

Which of the following substances has the greatest solubility in water?