If 25.0 mL of a 1.0 M solution is diluted to 50.0 mL, the concentration becomes 0.50 M.

Name: If 25.0 mL of a 1.0 M solution is diluted to 50.0 mL, the concentration becomes 0.50 M.
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Question

Quizplus · Accepted Answer

Diluting a solution decreases its concentration. The initial concentration times the initial volume equals the final concentration times the final volume (C1V1 = C2V2). Here, (1.0 M)(25.0 mL) = (C2)(50.0 mL), solving for C2 gives 0.50 M.

If 250 ML of a 1