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1.A solution contains 1.09×10-2 M potassium carbonate and 1.36×10-2 M ammonium sulfide. Solid copper(II) acetate is...

1.A solution contains 1.09×10-2 M potassium carbonate and 1.36×10-2 M ammonium sulfide.
Solid copper(II) acetate is added slowly to this mixture.

A. What is the formula of the substance that precipitates first?

formula =




B. What is the concentration of copper(II) ion when this precipitation first begins?
[Cu2+] =  M

2. A solution contains 6.93×10-3 M cobalt(II) nitrate and 1.32×10-2 M zinc acetate.
Solid potassium carbonate is added slowly to this mixture.

A. What is the formula of the substance that precipitates first?

formula =




B. What is the concentration of carbonate ion when this precipitation first begins?
[CO32-] =  M

3.A solution contains 8.08×10-3 M sodium carbonate and 1.05×10-2 M potassium hydroxide.
Solid manganese(II) acetate is added slowly to this mixture.

A. What is the formula of the substance that precipitates first?

formula =




B. What is the concentration of manganese(II) ion when this precipitation first begins?
[Mn2+] =  M

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