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Concentration of hydroxide ion

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Reference no: EM132015458

A solution contains 7.70×10-3 M ammonium phosphate and 7.51×10-3 M potassium hydroxide. 

Solid chromium(III) acetate is added slowly to this mixture. 

What is the concentration of hydroxide ion when phosphate ion begins to precipitate? 

[hydroxide] =  ____M

Reference no: EM132015458

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