posted by david .
A chemist conducted a recrystallization on 18.5 g of a solid and collected 12.5 g from the first, and 2.7 g from the second recrystallization. Show your calculation and answer the following questions:
What is the percent recovery in the first recrystallization? (1.5 marks)
What is the total percent recovery?
%recovery 1st = (12.5/18.5)*100 = ?
%recovery total = [(12.5+2.7)/18.5)]*100 = ?