You need to prepare a stock solution at ph 7.00 with kh2po4 and na2hpo4 (pka =7.21). what would be the respective concentration of these substances if you wish to obtain the final phosphate concentration [hpo4 −2 ] + [h2po4 − ] = 0.3 m? b. what will be the ph of the solution after adding 0.18 l of 0.2 m naoh?
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You need to prepare a stock solution at ph 7.00 with kh2po4 and na2hpo4 (pka =7.21). what would be t...
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