1. Tardigrade
  2. Question
  3. Chemistry
  4. A solution is obtained by mixing 200 g of 30% and 300 g of 20% solution by weight. What is the percentage of solute in the final solution?

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Q. A solution is obtained by mixing 200 g of 30% and 300 g of 20% solution by weight. What is the percentage of solute in the final solution?

NTA AbhyasNTA Abhyas 2022

Solution:

Solute in 200 g of 30% solution $=60$ g
Solute in 300 g of 20% solution $=60$ g
total grams of solute $=120$ g
total grams of solution $=200+300=500$ g
% of solute in the final solution $=\frac{\text{Wt. of solute}}{\text{Wt. of solution}}\times 100$
% of solute in the final solution $=\frac{120}{500}\times 100=24\%$