7.12 Timed Assessments
7.12.1 pH and pOH
Practice
Assume the temperature to be 25 °C.
Answers
- [H3O+] = 2.75 × 10–3
- [H3O+] = 8.91 × 10–3
- [OH–] = 1.58 × 10–2
Practice
Assume the temperature to be 25 °C.
Answers
- pH = 0.37; pOH = 13.63
- pH = 13.54; pOH = 0.46
- pH = 13.32; pOH = 0.68
Practice
Answers
- pH = 8.27; pOH = 5.73; basic
- pH = 8.39; pOH = 5.61; basic
- pH = 4.73; pOH = 9.07; acidic
7.12.2 Titrations
Practice
Strong acid/strong base titration
Answers
- pH = 0.70; pOH = 13.30
- pH = 0.92; pOH = 13.08
- pH = 7.00; pOH = 7.00
- pH = 12.46; pOH = 1.54
Practice
Strong acid/strong base titration
Answers
- pH = 0.60; pOH = 13.40
- pH = 0.72; pOH = 13.28
- pH = 7.00; pOH = 7.00
- pH = 12.55; pOH = 1.45
Practice
Weak acid/strong base titration
Answers
- pH = 2.00; pOH = 12.00
- pH = 3.37; pOH = 10.63
- pH = 8.02; pOH = 5.98
- pH = 12.43; pOH = 1.57
Practice
Weak acid/strong base titration
Answers
- pH = 1.80; pOH = 12.20
- pH = 3.39; pOH = 10.61
- pH = 8.34; pOH = 5.66
- pH = 12.70; pOH = 1.30