Question

A specialist takes 10 mcL of a 2% solution and dilutes it to 50 mcL by adding it to water. Find the percent concentration of the resulting solution.

Answer 1

$c2 = (c1V1) ÷ V.$

c1=2%

V1=10 mcl

V=50mcl

c2= (2*10)/50= 0.4%

c2=0.4%