What mass of nah2po4 must be added to 120 l of 020 m
What mass of NaH2PO4 must be added to 1.20 L of 0.20 M Na2HPO4to make a buffer solution whose pH=6.90? pKa2(H3PO4)=7.21.
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what mass of nah2po4 must be added to 120 l of 020 m na2hpo4to make a buffer solution whose ph690
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