Exercise #1:
We have 4 stock solutions. We want to use these stock solutions to make 4 new solutions.
What volume of stock solution and what volume of water do we have to mix to make the precise volume of the desired solution?
Stock solutions
Desired (new) Solutions
Volume of stock solution
Volume of water
Urea 1 M
50 ml of a 0.3 M Urea
Glycerol 0.5 M
25 ml of a 0.3 M Glycerol
Glucose 0.3 M
100 ml of a 0.2 M Glucose
NaCl 2 M
150 ml of a 0.15 M of NaCl