Unit F335 - Chemistry by design - Specimen.PDF, 434KB - OCR
Unit F335 - Chemistry by design - Specimen.PDF, 434KB - OCR
Unit F335 - Chemistry by design - Specimen.PDF, 434KB - OCR
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(f) A mixture of GHB and its sodium salt acts as a buffer solution.<br />
15<br />
(i) Explain the meaning of the term buffer solution and explain why buffer solutions are<br />
found in our bodies.<br />
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......................................................................................................................................... [5]<br />
(ii) Calculate the pH of a buffer solution containing equal amounts of GHB and its sodium<br />
salt.<br />
pH = ..............................................................[2]<br />
[Total: 29]<br />
[Turn over
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