Question

you must prepare a 100mL solution of hydrochloric acid with a concentration of 0.500mol/L. you are given the appropriate glassware and a bottle of 2.50mol/L stock hydrochloric acid. What volume of stock solution must you use to prepare the solution?

Answer 1

Solution.

$C1 \times V1 = C2 \times V2$

$V1 = \frac{C2 \times V2}{C1}$

V1 = 20 ml

Answer:

V1 = 20 ml