Assuming an extraction allows 95% of a desired product to partition into the organic phase, why would you get a better recovery doing three extractions with 10 mL of organic solvent and pooling the three washes together rather than doing one wash with 30 mL

Iam not going to tell you

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).

Depends on the speed of the car.