AP Chemistry Unit 8.2: Strong Acid and Base pH

Practice AP Chemistry Unit 8.2 questions on calculating pH or pOH for strong acid and strong base solutions from complete ionization.

Exam points

Use molecular structure and bonding models to explain polarity, solubility, phase behavior, and properties.
Interpret structural and particle evidence to connect geometry and bonding with observable chemical behavior.

Covered syllabus points

8.2.A—Calculate pH and pOH based on concentrations of all species in a solution of a strong acid or a strong base

[Maximum number: 1]

Answer the following questions about magnesium.

Calculate the pH of the solution in beaker 2.

C For the correct calculated value:

Point 05

$\begin{aligned} & \mathrm{pOH}=-\log \left(2.80 \times 10^{-4}\right)=3.553 \\ & \mathrm{pH}=14-\mathrm{pOH}=14-3.553=10.447 \end{aligned}$

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Covered syllabus points

8.2 pH and pOH of Strong Acids and Bases question 1