What volume of 2.5% (m/v) KOH can be prepared from 125 mL of a 5.0% KOH solution?
A)0.0040 mL
B)63 mL
C)0.10 mL
D)125 mL
E)250 mL

Name: What volume of 2.5% (m/v) KOH can be prepared from 125 mL of a 5.0% KOH solution? A)0.0040 mL B)63 mL C)0.10 mL D)125 mL E)250 mL
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Question

Quizplus · Accepted Answer

Using the dilution equation (C1V1 = C2V2), where C1 is 5.0%, V1 is 125 mL, C2 is 2.5%, and V2 is the unknown volume. Solving for V2 gives V2 = (5.0% * 125 mL) / 2.5% = 250 mL.

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