Calculate the pH of a solution in which [H₃O⁺] = mol·dm⁻³.
Answer and explanation
Correct answer: D.
- Step 1: .
- Step 2: .
Answer
.
Why not the others: : this is the pOH. : the sign of the logarithm was not reversed. : the exponent was misread by one.
Practise more Acids, bases and chemical equilibrium.
Free questions with an explanation for every one, and full timed South Africa Matric mock tests.
More Acids, bases and chemical equilibrium questions
- A catalyst increases the rate of a reaction because it
- Increasing the temperature increases the rate of a reaction mainly because
- For the equilibrium N₂(g) + 3H₂(g) ⇌ 2NH₃(g), increasing the pressure at constant temperature will
- Adding a catalyst to a reaction mixture at equilibrium will
- The forward reaction in an equilibrium is exothermic. Increasing the temperature will
- Which of the following is the conjugate base of HCl?