## Chemistry 10th Edition

The final volume of the $NaOH$ solution is equal to 231 mL.
1. Find the necessary volume: $C_1 * V_1 = C_2 * V_2$ $12.0 M* 100mL= 5.2M * V_2$ $1200 mL= 5.2 * V_2$ $V_2 = \frac{1200mL}{5.2} = 231 mL$