(Solved): (ii) The pain killer Paracetamol (also called acetaminophen) is a weak monoprotic acid, which has a ...

(ii) The pain killer Paracetamol (also called acetaminophen) is a weak monoprotic acid, which has a \( K_{a} \) of \( 3.9 \times 10^{-10} \) at \( 25^{\circ} \mathrm{C} \). Calculate the \( \mathrm{H}^{+} \)ion concentration of a \( 5 \mathrm{M} \) Paracetamol solution. Calculate the \( \mathrm{pH} \) of the \( 5 \mathrm{M} \) Paracetamol solution.