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What mass (g) of Nag HPO, 2H,0 must be added to 670 mL of 0.270 M H,PO to give a buffer of pH 6.90? (This problem requires va
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- from 670 mL of 0.270 M H₂PO4 pH = 6.90 mass of Nag HPO4 2490 added = ? Mw of Nag HPO4 ago = 177.99 g/mol standard data. Kai

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