Calculate the volume (in mL)of a 2.75 M solution that must be used to make 1.25 L of a 0.150 M solution.

Question

Quizplus · Accepted Answer

To find the volume of the 2.75 M solution needed, use the dilution formula $C_1V_1 = C_2V_2$, where $C_1$ and $V_1$ are the concentration and volume of the initial solution, and $C_2$ and $V_2$ are the concentration and volume of the final solution. Plugging in the given values: $2.75 M \times V_1 = 0.150 M \times 1250 mL$. Solving for $V_1$ gives $V_1 = \frac{0.150 M \times 1250 mL}{2.75 M} = 68.2 mL$.

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