Question

Calculate the concentration of a solution which contains 12 grams of urea in 160 grams of
the solution.
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Answer 1

concentration of any solution = mass of solute/mass of solution x 100

=> 12/160 * 100

=> 3/40 * 100

=>3/2 * 5

=>15/2

=> 7.5 %

Hence, the concentration of the solution is 7.5 % w/w.