How many milliliters of a 5.25% (w/v)HCl solution must be used to prepare 250 mL of a 0.175% (w/v)HCl solution?

Name: How many milliliters of a 5.25% (w/v)HCl solution must be used to prepare 250 mL of a 0.175% (w/v)HCl solution?
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Question

Quizplus · Accepted Answer

To find the volume of the 5.25% solution needed, use the dilution equation: C1V1 = C2V2. Here, C1 = 5.25%, V1 = ?, C2 = 0.175%, and V2 = 250 mL. Solving for V1 gives V1 = (0.175% * 250 mL) / 5.25% = 8.3 mL.

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