It is desirable to extract fish oil from the liver in a counter-current multistage extractor with ethyl ether solvent. T

[answerhappygod]

It is desirable to extract fish oil from the liver in a
counter-current multistage extractor with ethyl ether solvent. The
amount of solution carried (entrainment) by the fish liver is a
function of the oil content in the solution as shown in the
following table:
The oil content in fish liver is 25.7% by mass, it is expected
that 95% of the existing oil will be absorbed into the final
product solution which has a content of 70% by mass of oil.
Kg fish oil per kg solution
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.65
0.7
0.72
Kg of dissolved solution (entertainment) per Kg of fish liver
(inert)
0.205
0.242
0.286
0.339
0.405
0.489
0.6
0.672
0.765
0.81
count:
a. the required amount of ether per 1000kg of fish liver in
b. the ideal number of stages required
c. the actual number of stages when total stage efficiency is
70%