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AP EAMCET · Chemistry · Solutions

200 g of \(20 \% \mathrm{w} / \mathrm{w}\) urea solution is mixed with 400 g of \(40 \% \mathrm{w} / \mathrm{w}\) urea solution. What is the weight percentage (w/w \%) of resultant solution?

  1. A 30.33
  2. B 33.33
  3. C 36.33
  4. D 28.33
Verified Solution

Answer & Solution

Correct Answer

(B) 33.33

Step-by-step Solution

Detailed explanation

200 g of \(20 \%\) urea contain 40 g urea in 200 g solution 400 g of \(40 \%\) urea contain 160 g urea in 400 g solution. Total amount of solution \(=600 \mathrm{~g}\) Total amount of urea in solution \(=200 \mathrm{~g}\) Hence, Weight \(\%\) of urea in solution…