A solution is prepared by adding 25.0 mL of 1.30 M AlCl₃ solution to a flask, and then adding enough water to give a final volume of 200.0 mL. What is the molarity of the solution? A)0.260 B)0.163 C)6.50 D)1.24

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Quizplus · Accepted Answer

The molarity of the solution is found using the dilution formula $M_1V_1 = M_2V_2$, where $M_1$ and $V_1$ are the molarity and volume of the initial solution, and $M_2$ and $V_2$ are the molarity and volume of the final solution. Substituting the given values, $1.30 \, \text{M} \times 25.0 \, \text{mL} = M_2 \times 200.0 \, \text{mL}$. Solving for $M_2$ gives $M_2 = 0.163 \, \text{M}$.

A Solution Is Prepared by Adding 25