EJU Japan · EJU Chemistry

Acids and Bases

6 practice questions, each with the answer and an explanation.

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Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.

All 6 questions

What is the pH of a $1.0 \times 1 0^{- 3}$ mol/L solution of a weak monoprotic acid with $K_{a} = 1.0 \times 1 0^{- 5}$ mol/L? (Assume the dissociation is small.)
What is the pH of a $1.0 \times 1 0^{- 2}$ mol/L solution of a weak monoprotic acid with $K_{a} = 1.0 \times 1 0^{- 6}$ mol/L? (Assume the dissociation is small.)
What is the pH of a $1.0 \times 1 0^{- 1}$ mol/L solution of a weak monoprotic acid with $K_{a} = 1.0 \times 1 0^{- 5}$ mol/L? (Assume the dissociation is small.)
What is the pH of a $1.0 \times 1 0^{- 2}$ mol/L solution of a weak monoprotic acid with $K_{a} = 1.0 \times 1 0^{- 4}$ mol/L? (Assume the dissociation is small.)
Which is a strong base?
What is the conjugate base of HSO $_{4}^{-}$ ?

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