CHEMISTRY 31

Spring, 2015 - Dixon

Homework Set 3

Chapter Problems                                  Date to finish

Set 3.1                                                                                 Apr. 29

Ch. 22:                                           28a-f, 30, 38

Ch. 8:                                             6, 8, 11, 19, 21, 26, 33, 38

Ch. 9:                                             3, 4

Additional Problem 3.1

Additional Problem:  A buffer is being prepared by adding HCl to pyridine (C₅H₅N, see Appendix G for pK_a of conjugate acid).  It is desired to make a buffer at pH = 5.76 by adding 1.00 M HCl to a 250 mL volumetric flask containing 1.720 g of pyridine.  Determine the volume of HCl that is needed to add to the volumetric flask which will be diluted to the mark to make the buffer.

Set 3.2                                                                                                          May 11

Ch. 9                                               16, 29

Ch. 10                                             2, 4, 6, 14, 19

No Additional problem or quiz