Materials Solution I (1% Compound A (m/v); M.W.250 g/mole) Solution II (1.5 M Compound "B" M.W.480 g/mole; Density of compound B: 1.6 g/mL) Method 1. Prepare 1mL of each of the following solutions from the above stock solutions. a. A 0.2 mM solution of compound "A". b. A 0.72% (m/v) solution of compound "B". c. A solution containing 0.1 mg of compound "A" and 0.1% (v/v) of compound "B". d. A solution with the following ratio: solution 1: solution II: water: 2:1: 247