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A 25.0 mL sample of a 1.20 M potassium chloride solution
Chapter 4, Problem 69E(choose chapter or problem)
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:
The solid BaCl2 is collected, dried, and found to have a mass of 2.45 g. Determine the limiting reactant, the theoretical yield, and the percent yield.
Questions & Answers
QUESTION:
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:
The solid BaCl2 is collected, dried, and found to have a mass of 2.45 g. Determine the limiting reactant, the theoretical yield, and the percent yield.
ANSWER:Solution: Here, we are going to identify the compound that will have highest concentration of potassium ion. Step1: a) 1 mole of KCl contains 1 mole of potassium(K ) ion + Therefore, 0.20 M KCL will contain 0.20 M K ion. + + Similarly, 0.15 M K CrO wil2conta4 (2 x 0.15 = 0.30) M K ion. And 0.080 M K PO will contain (3 x 0.080 = 0.24) M K ion. + 3 4 Thus, 0.15 M K Cr