A buffer solution is composed of 1.482 g of KH2PO4 and 5.881 g of Na2HPO4 ....

A buffer solution is composed of 1.482 g of KH₂PO₄ and 5.881 g of Na₂HPO₄ . ( K_a for dihydrogen phosphate ion is 6.2 x 10^-8.)

A. What is the pH of the buffer solution?

pH = _______

B. What mass of KH₂PO₄ must be added to decrease the buffer solution pH by 0.10 unit from the value calculated in part a?

Mass = ______ g

Expert Solution

queen_honey_blossom answered 2 years ago

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