Anonymous

Question description

1) A 25.0 mL sample of a 1.20 M potassium chloride solution is mixed with 15.0 mL of a 0.900 M barium nitrate solution and this precipitation reaction occurs:

2KCl(aq) + Ba(NO3)2(aq) => BaCl2(s) + 2KNO3(aq)

The solid BaCl2 is collected, dried, and founded to have a mass of 2.45g.  Determine the limiting reactant, theoretical yield, and the percent yield.

2)  A 55.0 mL sample of a 0.102 M potassium sulfate solution is mixed with 35.0 mL of a 0.114 M lead(II) acetate solution and this precipitation reaction occurs:

K2SO4(aq) + Pb(C2H3O2)2(aq) => 2KC2H3O2(aq) + PbSO4(s)

The solid PbSO4 is collected, dried, and founded to have a mass of 1.01 g.  Determine the limiting reactant, the theoretical yield, and the percent yield.

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