(B)
Step-by-step explanation:
2.50 M KCl = (2.50 mol KCl/L)(0.600 L) = 1.50 mol KCl
molar mass of KCl = 74.5513 g KCl/mol
1.50 mol KCl × (74.5513 g KCl/mol) = 112 g KCl
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