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jeka57 [31]
3 years ago
7

3) A standard mass of 250.0 g was placed on a balance. The balance said it had a mass of 243.9

Chemistry
1 answer:
Roman55 [17]3 years ago
8 0

Answer:

20

Explanation:

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What concentration of monosodium phosphate would be required to make a solution of pH 7.4 with 0.2 M disodium phosphate ( pKa
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The buffer of H₂PO₄⁻ / HPO₄²⁻ (Monobasic phosphate and dibasic phosphate has a pKa of 7.2

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pH = pKa + log [A⁻] / [HA]

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