100.0 mL of a 0.500 M solution of KBr is diluted to 500.0 mL. What is the new concentration of the solution?
CM = n / V
n = CM x V
n1 = n2
CM1 x V1 = CM2 x V2
0.500 x 0.1000 = CM2 x 0.5000
CM2 = (0.500 x 0.1000) / 0.5000 = 0.1 M
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