1. what will be the molarity of the dilute solution if you add water to 100 ml of a 2.5 m solution of…

1. what will be the molarity of the dilute solution if you add water to 100 ml of a 2.5 m solution of potassium chloride until the final volume is 150 ml?

1. what will be the molarity of the dilute solution if you add water to 100 ml of a 2.5 m solution of potassium chloride until the final volume is 150 ml?

Answer

Explanation:

Step1: Use dilution formula

$M_1V_1 = M_2V_2$

Step2: Identify given values

$M_1 = 2.5\ M$, $V_1=100\ mL$, $V_2 = 150\ mL$

Step3: Solve for $M_2$

$M_2=\frac{M_1V_1}{V_2}=\frac{2.5\ M\times100\ mL}{150\ mL}$ $M_2=\frac{250}{150}\ M=\frac{5}{3}\ M\approx1.67\ M$

Answer:

$1.67\ M$