CHM 2046 Study Guide - Midterm Guide: Sodium Benzoate, Silver Bromide, Hypobromous Acid

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

Document Summary

Please bubble in your name, ufid #, and form code on the answer sheet using a #2 pencil: determine the value of the equilibrium constant for the following reaction: (aq) ag(s2o3)2. Use the data for the following two reactions: Ag+ (aq) + 2s2o3 (aq) + br- (aq) ag(s2o3)2. Kf = 2. 0 1013: 5. 4 10-13, 3. 7 1025, the ka of benzoic acid is 1 10-5. 2+ (aq), given the following stepwise formation constants: Kf4 = 5. 0 101: 4. 1 108, 3. 0 1011, 5. 0 101, equal volumes of solutions (i) and (ii) are mixed together. Indicate which of the resulting mixtures will be a buffer. Solution (i: 0. 30 m hno2, 0. 20 m hf, 0. 15 m nh3, 0. 20 m c6h5cooh, all of the above combinations will give a buffer solution. 0. 25 m c6h5coona: a hypobromous acid buffer is made with ph = 9. 1. What is the ratio of moles of hobr to moles of.