When 20 milliliters of 1.0m hcl is diluted to a total volume of 60 milliliters, the concentration of the resulting solution is?

In preparing diluted solutions from concentrated solutions we can use the following formula

c1v1 = c2v2

c1 and v1 are the concentration and volume of the concentrated solution respectively

c2 and v2 are the concentrations and volume of the diluted solution respectively

Substituting these values,

20 mL x 1.0 M = C x 60 mL

C = 0.33 M

The concentration of the resulting diluted solutions is 0.33 M