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Describe the preparation of 1L of a 0.1 M phosphate buffer at pH 8.0. The pKa...

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Chemistry

Describe the preparation of 1L of a 0.1 M phosphate buffer at pH8.0. The pKa for the buffer is 6.86

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4.1 Ratings (511 Votes)
Solution The values given in the question are as follows Buffer pH 80 pKa 686 Required concentration 01M and Required volume 1 L We know that the pKas of phosphoric acid are 23 721 and 1235 Required pH is 8 and pKa is 686 This means monosodium dihydrogen phosphate monohydrate diprotic H2PO4 and disodium monohydrogen phosphate heptahydrate monoprotic HPO42 shall be used Further    See Answer
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