5.12 Timed Assessments

5.12.1 pH and pOH

Practice

Assume the temperature to be 25 °C.



Answers
  1. [H3O+] = 2.75 × 10–3
  2. [H3O+] = 8.91 × 10–3
  3. [OH–] = 1.58 × 10–2


Practice

Assume the temperature to be 25 °C.



Answers
  1. pH = 0.37; pOH = 13.63
  2. pH = 13.54; pOH = 0.46
  3. pH = 13.32; pOH = 0.68


Practice


Answers
  1. pH = 8.27; pOH = 5.73; basic
  2. pH = 8.39; pOH = 5.61; basic
  3. pH = 4.73; pOH = 9.07; acidic


5.12.2 Titrations

Practice

Strong acid/strong base titration


Answers
  1. pH = 0.70; pOH = 13.30
  2. pH = 0.92; pOH = 13.08
  3. pH = 7.00; pOH = 7.00
  4. pH = 12.46; pOH = 1.54


Practice

Strong acid/strong base titration


Answers
  1. pH = 0.60; pOH = 13.40
  2. pH = 0.72; pOH = 13.28
  3. pH = 7.00; pOH = 7.00
  4. pH = 12.55; pOH = 1.45


Practice

Weak acid/strong base titration


Answers
  1. pH = 2.00; pOH = 12.00
  2. pH = 3.37; pOH = 10.63
  3. pH = 8.02; pOH = 5.98
  4. pH = 12.43; pOH = 1.57


Practice

Weak acid/strong base titration


Answers
  1. pH = 1.80; pOH = 12.20
  2. pH = 3.39; pOH = 10.61
  3. pH = 8.34; pOH = 5.66
  4. pH = 12.70; pOH = 1.30




"Chemistry: Student Handbook" was created by Eric Van Dornshuld.    |    Release: Beta 1.0
Licensed under Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.