Which of the following sets of solutions of u | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Key Idea: Isotonic solutions are those solutions which have the same osmotic pressure at a given temperature.Formula for osmotic pressure: $\pi =

Vedclass · Accepted Answer

$3.0 \ g \ L^{-1}$ urea and $17.1 \ g \ L^{-1}$ sucrose

Vedclass · Answer

(D) Key Idea: Isotonic solutions are those solutions which have the same osmotic pressure at a given temperature.Formula for osmotic pressure: $\pi = C R T$,where $C$ is the molar concentration.For urea $(3.0 \ g \ L^{-1})$:Molar concentration $C_1 = \frac{3 \ g \ L^{-1}}{60 \ g \ mol^{-1}} = 0.05 \ mol \ L^{-1} = \frac{1}{20} \ mol \ L^{-1}$.Osmotic pressure $\pi_1 = \frac{1}{20} R T$.For sucrose $(17.1 \ g \ L^{-1})$:Molar concentration $C_2 = \frac{17.1 \ g \ L^{-1}}{342 \ g \ mol^{-1}} = 0.05 \ mol \ L^{-1} = \frac{1}{20} \ mol \ L^{-1}$.Osmotic pressure $\pi_2 = \frac{1}{20} R T$.Since $\pi_1 = \pi_2$,the solutions are isotonic.

Which of the following sets of solutions of urea (mol. mass $60 \ g \ mol^{-1}$) and sucrose (mol. mass $342 \ g \ mol^{-1}$) is isotonic?

Similar Questions

An aqueous solution of $0.6 \% (w/v)$ urea is isotonic with which of the following?

What is the osmotic pressure $(\pi)$ of a $0.02 \ M$ solution of $NaCl$ (in $RT$)?

Consider separate solutions of $0.500 \, M \, C_2H_5OH \, (aq)$,$0.100 \, M \, Mg_3(PO_4)_2 \, (aq)$,$0.250 \, M \, KBr \, (aq)$ and $0.125 \, M \, Na_3PO_4 \, (aq)$ at $25 ^\circ C$. Which statement is true about these solutions,assuming all salts to be strong electrolytes?

When two solutions $X$ and $Y$ are separated by a semi-permeable membrane and the solvent flows from $Y$ to $X$,then:

Which one of the following is an isotonic pair of solutions?

Vedclass Test Series

Exam Paper Generator

Online Exam Module