$A$ semipermeable membrane used in the measurement of osmotic pressure of a solution allows the passage of

$A$ $5.25\%$ solution of a substance is isotonic with a $1.5\%$ solution of urea (molar mass $= 60\ g\ mol^{-1}$) in the same solvent. If the densities of both the solutions are assumed to be equal to $1.0\ g\ cm^{-3},$ the molar mass of the substance will be .............. $g\ mol^{-1}$.

Provide examples of osmotic pressure in daily life.

What does a semi-permeable membrane allow to pass through?

If a $0.1 \ M$ solution of glucose (mol. wt. $180$) and $0.1 \ M$ solution of urea (mol. wt. $60$) are placed on the two sides of a semipermeable membrane to equal heights,then it will be correct to say

$.......... \%$ percent of glucose solution is isotonic with $1.5 \% \, (w/V)$ urea solution.