Multiple choice

300 gm of 25% w/w solution of solute A is mixed with 400 gm of 40 (w/w) solution of another solute B. What is the w/w percentage of new mixture.

  1. 10.71% in A

  2. 35% in B

  3. 25% in A

  4. 40% in B
Reveal answer Fill a bubble to check yourself
A Correct answer
AI explanation

The amount of solute A in the first solution is 25 percent of 300 grams, which equals 75 grams. When mixed with the 400 grams of solution B, the total mass of the new mixture becomes 700 grams. The weight by weight percentage of solute A in the final mixture is (75 divided by 700) multiplied by 100, which equals 10.71 percent.

Keep practicing — related questions