Question $2$

A raffinate of $2\%$ oleic acid is to be produced by simple contact $($ie$.$ one stage$)$ from a $30\%$ oleic acid feed. The solvem is Methanol. Determine:

$1)$ The solvent to feed ratio required, using $100$ kg of feed.

$2.)$ The yield of olive oil. Note: The yield is equal to the weight of olive oil out in the raffinate to the weight of olive oil in the feed. Use pure solvent.