Question

If 45.5 mL of a 18.0 M HBr stock solution is diluted to 1.5 M, what is the volume of the diluted solution?

Answer 1

The volume of the diluted HBr stock solution is 546mL.

CALCULATE VOLUME:

The volume of a diluted solution can be calculated by using the following expression:

C1V1 = C2V2

Where;

• C1 = initial concentration (M)
• C2 = final concentration (M)
• V1 = initial volume (mL)
• V2 = final volume (mL)

According to this question, 45.5mL of a 18.0M HBr stock solution is diluted to 1.5 M, the volume of the diluted solution is calculated as follows:

18.0 × 45.5 = 1.5 × V2

819 = 1.5V2

V2 = 819 ÷ 1.5

V2 = 546mL

Therefore, the volume of the diluted HBr stock solution is 546mL.

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