## Chemistry (7th Edition)

The $HCl$ concentration after the dilution is equal to $1.71$ $M$
1. Find the concentration after the dilution: $C_1 * V_1 = C_2 * V_2$ $12*35.7= C_2 *250$ $428 = C_2 *250$ $C_2 =1.71$ $M$