i What is the pH of a mixture of 0 042MNaH2PO4 and 0 058MNa2HPO4,pka 7 21 ii If 1 0ml of 10 0MNaOH is added to 1 litre of the buffer prepared in (i), how much will the pH change iii If 1 0ml of 10 0MNaOH is added to 1 litre of pure water at pH7 0, what is the final answer Compare this with answer in (ii)

Question

i  What is the pH of a mixture of 0 042MNaH2PO4 and 0 058MNa2HPO4,pka 7 21 ii  If 1 0ml of 10 0MNaOH is added to 1 litre of the buffer prepared in (i), how much will the pH change  iii  If 1 0ml of 10 0MNaOH is added to 1 litre of pure water at pH7 0, what is the final answer  Compare this with answer in (ii)

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Question

i. What is the pH of a mixture of 0.042MNaH2PO4 and 0.058MNa2HPO4,pka=7.21 ii. If 1.0ml of 10.0MNaOH is added to 1 litre of the buffer

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