Chemistry

Problem

A chemist prepares 200 mL of an aqueous solution that is 0.80 M in KNO

_3

. Additional water is then added until the total volume is 400 mL. Which of the following best describes the new molarity of the solution? a)

1.60\;\text{M}

0.40\;\text{M}

0.80\;\text{M}

0.04\;\text{M}