What volume of a 2.5 M stock solution of acetic acid (HC2H3O2) is required to prepare 100.0 milliliters of a 0.50 M acetic acid solution?

Answer 1

Find:
V1 : initial volume
Given:
C1=2.5M : initial concentration
C2=0.50M : final concentration
V2=100.0mL : final volume
Using:
V1 = V2 * C2 / C1

Answer 2

56