Answer to Question #22059 in Organic Chemistry for kristel

Question

A 25 mL of 6M sodium hydroxide are diluted to 1.3L solution. What is the resulting concentration?

Answer 1

Molarity is calculated due to the following formula:

C_m = n/V
n(NaOH) = C_m*V
n(NaOH) = 6 mol/L * 0.025 L = 0.15 mol

Total volume:

V(solution) = 1300 + 25 = 1325 ml = 1.325 L

Concentration:

C_m(NaOH) = n/V
C_m(NaOH) = 0.15 mol/1.325L = 0.1132 M

Answer: 0.1132 M