What volume of 0.182 m na3po4 solution is necessary to completely react with 90.7 ml of 0.103 m cucl2?

Question

Zoie Blanchard

Chemistry

17 January, 00:40

What volume of 0.182 m na3po4 solution is necessary to completely react with 90.7 ml of 0.103 m cucl2?

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Sammy Hurst · Answer 1

Answer is: 34.2 mL sodium phosphate solution is necessary to completely react.

Chemical reaction: 2Na₃PO₄ + 3CuCl₂ → 6NaCl + Cu₃ (PO₄) ₂.

n (CuCl₂) = c (CuCl₂) · V (CuCl₂).

n (CuCl₂) = 0.103 M · 0.0907 L.

n (CuCl₂) = 0.00934 mol.

From chemical reaction: n (CuCl₂) : n (Na₃PO₄) = 3 : 2.

n (Na₃PO₄) = 2 · 0.00934 mol : 3.

n (Na₃PO₄) = 0.00622 mol.

V (Na₃PO₄) = n (Na₃PO₄) : c (Na₃PO₄).

V (Na₃PO₄) = 0.00622 mol : 0.182 M.

V (Na₃PO₄) = 0.0342 L · 1000 mL/L = 34.2 mL.