Question

500 kg of the inert solid containing 28 percent by mass of the water-soluble

component (A), is agitated with 100 m3 of water for 600 sec. After each decanting 25% of the

solution produced remain in the residue. Water is saturated with the solute at a concentration

of 2.5 kg/m3. Find the concentration of the solute (A) in the solution after the leaching and

number of washing such that the concentration of A in the solid residue is 0.01% by mass. In

a pilot scale test using a vessel 1m3 in volume, a solute was leached from an inert solid and

the water was 75 percent saturated in 10 s. Assuming conditions are equivalent to those in th​

Answer 1

Answer:

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