You have a 3 L of a 3M solution of NaCl. You also have a 2 L of a 2M solution of AgNO3. Calculate?

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You have a 3 L of a 3M solution of NaCl. You also have a 2 L of a 2M solution of AgNO3. Calculate?

the concentrations of the Cl- ions.
Please show all steps.

2007-10-08 10:36:54 · 1 answers · asked by ny_spinner_dan 3 in Science & Mathematics ➔ Chemistry

1 answers

Let the NaCl solution be called NaS. Let the AgNO3 solution becalled AgS.

AgNO3 + NaCl ===> AgCl(s) + NaNO3

3LNaS x 3molNaCl/1LNaS x 1molCl-/1molNaCl = 9 moles Cl-

2LAgS x 2molAgNO3/1LAgS x 1molAg+/1molAgNO3 = 4 moles Ag+

The 4 moles Ag+ will react with 4 moles Cl-, leaving 5 moles Cl- left over. The combination of 3L NaS solution with 2L AgS solution gives 5L total solution.

5molCl-/5Lsoln = 1molCl-/L = 1M Cl-

2007-10-08 12:19:23 · answer #1 · answered by steve_geo1 7 · 1⤊ 0⤋