You prepare a suspension by dispersing 20.0 g solid compound with the aqueous dispersant (outer phase of the suspension) to a final volume of 100.0 ml. The dispersant contains 10% w/v glycerol and 0.5% w/v polysorbate 80. The density of the solid compound is 2.0 g/ml.

a) How much dispersant (ml) will you need to prepare 100.0 ml of this suspension?

b) Calculate the concentration of all components (% w/v) in the final formulation