CHM 2046 Study Guide - Midterm Guide: Tennis Ball, Solubility Equilibrium, Buffer Solution

• School: University of Florida
• Department: Chemistry
• Course: CHM 2046
• Professor: Christou

Document Summary

Please bubble in a, b or c as the test form code at the top right of your answer sheet. For this version the correct answer to each question is a. Predict the sign of s rxn for the following reaction: 2 c (s) + o2 (g) 2 co (g) positive depends on suniv negative cannot be predicted zero. Which of the following is always true for a spontaneous reaction? none of these. A solution is prepared that contains [pb2+ (aq)] = 1. 4 x 10-2 m, and [i- (aq)] = 2. 0 x 10-4 m. Will a precipitate of pbi2 (s) form? (ksp for pbi2 is 7. 9 x 10-9). no none of these only if na+ (aq) ions are also added yes cannot be determined. The solubility product expression (ksp) for baf2 (s) in water is: Ksp = [ba2+ (aq)][f- (aq)]2 none of these.