6. Practice a few of these by filling in the table below: (You MUST use same units on each side to do the calculations!) M Stock Conc. (M/L). V1 M2 Vol. of Stock Used (mL). Conc. of Working Solution Vol. of Working Solution to be prepared (mL) 200 mL 1M 0.002 M 0.5 M 0.05 M 50 mL 0.25 M 40 mL 1000 ml 0.01 M 1 mL 500 uM