A) 66.43
B) 19.24
C) 33.57
D) 87.23
Correct Answer: C
Solution :
Mass of solute in I solution \[= \frac{25}{100} \times 300 g = 75 g\] Mass of solute in II solution \[= \frac{40}{100} \times 400 g = 160 g\] After mixing both solutions, Total mass of solute \[= \left( 75 +160 \right) g = 235 g\] Total mass of solution \[= \left( 300 + 400 \right) g = 700 g235\] Mass % of solute in final solution \[=\,\frac{235}{700}\times 100\] \[= \,33.57\,%\]You need to login to perform this action.
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