CHEM-UA 126 Homework Answers - Chap. 13

Chapter 13

Homework Answers

Note: For some problems, giving the answers would inhibit your thinking through to the solution. In such cases, the phrase "Consult recitation instructor" has been given in place of the answer.

You must show work leading to your results in order to receive credit for homework assignments.

  • 3) Consult recitation instructor.

  • 12) Consult recitation instructor.

  • 14) Consult recitation instructor.

  • 28) Consult recitation instructor.

  • 57) (a) 1.7 M, (b) 2.23 M

  • 59) (a) 0.319 M, (b) 0.0138 M

  • 65) (a) 6.30 m, (b) 2.42 m

  • 67) 0.270 m

  • 71) (a) 0.0115, (b) 3.63 % (by mass), (c) 0.645 m

  • 73) 0.000081, 0.075 % (by mass)

  • 75) 2.49 m, 2.27 M, 0.0430

  • 97) 38 torr

  • 101) 5.1 °C

  • 103) 0.0082 g

  • 110) 5.4X103 g/mol

  • 118) -1.2 °C, 100.32 °C (we really should show just two sig figs with the way this problem was stated, but then we wouldn't see any change in b.p. - rest assured that data on the quiz or exam will be more precise), 14 atm

  • 134) 2.0X102 geth/gmeth

  • 151) (a) Consult recitation instructor, (b) 6.0X101 g/mol, Consult recitation instructor.

  • 152) (a) 14 g, (b) 0.15 M, (c) 2.0 g

  • 158) (a) 4.3X102 g, (b) 5.5X102 g