A 5 % solution of cane sugar (molecular weight 342) is isotonic with 1 % solution of substance X. The molecular weight of X is:

Question

A 5 % solution of cane sugar (molecular weight 342) is isotonic with 1 % solution of substance X. The molecular weight of X is: (A) 34.2 (B) 136.2 (C) 68.4 (D) 171.2

Tardigrade Admin · Accepted Answer

Molecuir weight of cane sugar =342 (5/100 × 342)=(1/M × 100) or M=(342/5) or M=68.4

Q. A $5%$ solution of cane sugar (molecular weight $342$ ) is isotonic with $1%$ solution of substance $X$ . The molecular weight of $X$ is:

34.2

136.2

68.4

171.2

Molecuir weight of cane sugar $= 342$
$\frac{5}{100 \times 342} = \frac{1}{M \times 100}$
or $M = \frac{342}{5}$
or $M = 68.4$

Q. A 5% solution of cane sugar (molecular weight 342) is isotonic with 1% solution of substance X. The molecular weight of X is: