Question

8 g of a solute is dissolved in 92 g of solvent. If the density of solution is 2 g ml${}^{-1}$, find the weight-volume percentage.

• A. 10 g ml${}^{-1}$
  
• B. 12 g ml${}^{-1}$
  
• C. 16 g ml${}^{-1}$
  
• D. 15 g ml${}^{-1}$
  

Answer 1

Answer: (C)

16 g ml${}^{-1}$

given $8g$ solute

$92g$ solvent

solution $=100g$

density $=\frac{mass}{volume}=2$

$\frac{100}{volume}=2$

volume $=50ml$

weight $-$ volume $\%=\frac{weightofsolute}{volumeofso{l}^n}\times 100=\frac{8}{50}\times 100$

$=16gm{l}^{-1}$