A 5% solution of glucose (molar mass 180) is isotonic with a 2.5% solution of substance X at the same temperature. The molar mass of X is

Question

A 5% solution of glucose (molar mass 180) is isotonic with a 2.5% solution of substance X at the same temperature. The molar mass of X is (A) 90 (B) 45 (C) 180 (D) 360

Tardigrade Admin · Accepted Answer

(5/180) = (2.5/x) or x = (2.5 × 180/5) = 90

Q. A 5% solution of glucose (molar mass 180) is isotonic with a 2.5% solution of substance X at the same temperature. The molar mass of X is

90

45

180

360

$\frac{5}{180} = \frac{2.5}{x} or x = \frac{2.5 \times 180}{5} = 90$

Q. A 5% solution of glucose (molar mass 180) is isotonic with a 2.5% solution of substance X at the same temperature. The molar mass of X is

90

45

180

360

1805​=x2.5​orx=52.5×180​=90

$\frac{5}{180} = \frac{2.5}{x} or x = \frac{2.5 \times 180}{5} = 90$