Question 3.13: DILUTING A SOLUTION How would you prepare 500.0 mL of 0.2500...

DILUTING A SOLUTION

How would you prepare 500.0 mL of 0.2500 M NaOH solution starting from a concentration of 1.000 M?

STRATEGY
The problem gives initial and final concentrations ( $M_{i} and M_{f}$ ) and final volume ( $V_{f}$ ) and asks for the initial volume ( $V_{i}$ ) that we need to dilute. Rewriting the equation $M_{i} × V_{i} = M_{f} × V_{f} as V_{i} = (M_{f}/M_{i}) × V_{f}$ gives the answer.

fig 3.3

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