What mass of calcium phosphate precipitates, Chemistry

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What mass of calcium phosphate precipitates

Phosphate ons are a major pollurant of water supplies. They can be removed by precipitation using solutions of Ca^2-ions becasue the K_sp of calcium phosphate is 2.0 x10^-29 . Suppose that 3.00 x 10³ L of waster water containing phosphate ions at 2.2 x 10^-3 M istreated by addin 120 moles of solit CaCl₂.(which dissolves completely). Assume that the increase of the solution volume is negligible

a. What is the concentration of phophate ions after treatment?

b. What mass of calcium phosphate precipitates?

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Chemistry: What mass of calcium phosphate precipitates

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