A solution contains 1.37×10² M potassium phosphate and 1.21×10²M sodium hydroxide. Solid aluminum nitrate is added slowly to this mixture. What is the concentration of hydroxide ion when phosphate ion begins to precipitate? [hydroxide] = 2.27x10A-4 M
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![A solution contains 1.37x102 M potassium phosphate and 1.21×102 M sodium
hydroxide.
Solid aluminum nitrate is added slowly to this mixture.
What is the concentration of hydroxide ion when phosphate ion begins to precipitate?
[hydroxide] = 227x10^-4
M
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