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Acids, bases and titration — Question 22

QCAA 2022, Paper 1 · 2 marks

Q22 · 2022 · Paper 1Unclassified2 marks

QUESTION 22 (2 marks)

Calculate the concentration of HF (hydrogen fluoride) in an aqueous solution with a pH of 4.00 (Ka =7.2×10−4). Show your working.(\mathrm{K}_{\mathrm{a}}\,=7.2\times10^{-4}\text{). Show your working.}

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