Solutions - 3
•B.Calculations of solutions cont=d:
•3.Volume per unit volume (v/v)
•Make 500 ml of a 5% HCl using stock 10% HCl solution
•V1 x C1 =  V2 x C2
•500 x 5   = X x 10
•x   =   250 ml
•so you would put 250 ml of 10% HCl in flask and add H2O to 500 mark.