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A.In the laboratory a student combines 28.9 mL of a 0.264 M sodium phosphate solution with...

A.In the laboratory a student combines 28.9 mL of a 0.264 M sodium phosphate solution with 15.9 mL of a 0.389 M potassium phosphate solution.

What is the final concentration of phosphate anion ?

  M

B.In the laboratory a student combines 22.3 mL of a 0.332 M ammonium iodide solution with 23.3 mL of a 0.617 M ammonium carbonate solution.

What is the final concentration of ammonium cation ?

M

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