Problema Solution
We need to make 100 mL of a 4% KCl solution by diluting a 5% solution of potassium chloride. How many milliliters of the 5% KCl solution are needed?
Answer provided by our tutors
5% KCl solution: x ml
So
100*4% = 5%*x
x = 80
So 5% KCl solution is 80 ml