Question

A chemist dilutes a 1.0 mL sample of 2.0 M KNO3 by adding water to it. If the concentration of the solution that is obtained is 0.0080 M, what is its volume?
Use M subscript i V subscript i equals M subscript f V subscript f..
125 mL
250 mL
500 mL
2,000 mL

Answer 1

Use MiVi = MfVf. So Vf = (MiVi)/Mf = (2.0 M)(1.0 mL) / 0.0080 M = 2.0 / 0.0080 mL = 250 mL.

Answer: 250 mL.