22When solutions of silver nitrate and calcium chloride are mixed, silver chlori

Question

22When solutions of silver nitrate and calcium chloride are mixed, silver chloride precipitates out of solution according to the equation

2AgNO3(aq)+CaCl2(aq)2AgCl(s)+Ca(NO3)2(aq)

1:

What mass of silver chloride can be produced from 1.23 L of a 0.134 M solution of silver nitrate? Express your answer with the appropriate units.

2:

The reaction described in Part A required 3.28 L of calcium chloride. What is the concentration of this calcium chloride solution?

Express your answer with the appropriate units.

Explanation / Answer

Q1

mol of AgNO3 --> MV = 1.23*0.134 = 0.16482 mol of AgNO3

Ag in AgNO3 = 0.16482

now, mass

mass = mol*MW = 0.16482*143.32 = 23.62g of Ag can be produced

Q2

for CaCl2

mol of CACl2 = 1/2* mol of AgNO3 = 1/2*0.16482 = 0.08241 mol of CaCl2

now...

[CaCl2 ] = mol/V = 0.08241 / 3.28

[CaCl2] = 0.02512 M

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