Your original solid mixture (before separation) weighed 450 mg, and was 64% 4-chlorobenzoic acid by
mass. Given that you actually recovered 200 mg, calculate your percent recovery.

 

Answer:

%recovery=69.44%

Step-by-step explanation

%recovery=( mass of 4-chlorobenzoic acid recovered/Total amount 4-chlorobenzoic acid)× 100%

Total amount of pure 4-chlorobenzoic acid=64% of 450g=288g

Amount of pure 4-chlorobenzoic acid recovered=200g

%recovery=(200g/288g)×100%=69.44%

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