CHM 2046 Study Guide - Final Guide: Titration Curve, Silver Nitrate, Buffer Solution

• 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. Which weak acid would be the best choice for making your buffer? (a) hocl (b) hf (c) hocn (d) nh4. + (e) ch3cooh (a) 0. 795 g/l (b) 6. 30 10-3 g/l (c) 0. 0342 g/l (d) 0. 533 g/l (e) 2. 88 g/l. You make 500 ml of a 0. 50 m hz / 0. 30 m z- buffer (where hz is a hypothetical weak acid) and find it to have a ph of 8. 0. What is the kb of z-? (a) 7. 77 (b) 8. 22 (c) 0. 915 (d) 1. 67 10-6 (e) 6. 02 10-9. What is the change in ph that results from adding 0. 0060 mol hcl to a 300 ml buffer solution that is. 0. 250 m ch3cooh and 0. 560 m nach3coo? (a) +0. 052 (b) -0. 052 (c) +0. 049 (d) -0. 049 (e) -0. 015. Calculate the value of the solubility product, ksp for calcium phosphate, ca3(po4)2.