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How many grams of dipotassium succinate trihydrate (K2C4H4O4·3H2O, MW = 248.32 g/mol) must be added to...

How many grams of dipotassium succinate trihydrate (K2C4H4O4·3H2O, MW = 248.32 g/mol) must be added to 710.0 mL of a 0.0304 M succinic acid solution to produce a pH of 5.989? Succinic acid has pKa values of 4.207 (pKa1) and 5.636 (pKa2). (Note: 324.45g is not correct)

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