Which of the following aqueous solutions has | vedclass

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

Question

(A) The elevation in boiling point is given by $\Delta T_b = i 	imes K_b 	imes m$. Since $K_b$ is constant for the solvent,the solution with the hig

Vedclass · Accepted Answer

$0.01 \, M \, Na_2SO_4$

Vedclass · Answer

(A) The elevation in boiling point is given by $\Delta T_b = i 	imes K_b 	imes m$. Since $K_b$ is constant for the solvent,the solution with the highest value of $i 	imes m$ will have the highest boiling point.For $0.01 \, M \, Na_2SO_4$,$i = 3$ $(2Na^+ + SO_4^{2-})$,so $i 	imes m = 3 	imes 0.01 = 0.03$.For $0.01 \, M \, KNO_3$,$i = 2$ $(K^+ + NO_3^-)$,so $i 	imes m = 2 	imes 0.01 = 0.02$.For $0.015 \, M \, 	ext{Urea}$,$i = 1$ (non-electrolyte),so $i 	imes m = 1 	imes 0.015 = 0.015$.For $0.015 \, M \, 	ext{Glucose}$,$i = 1$ (non-electrolyte),so $i 	imes m = 1 	imes 0.015 = 0.015$.Comparing the values,$0.03 > 0.02 > 0.015$. Thus,$0.01 \, M \, Na_2SO_4$ has the highest boiling point.

Which of the following aqueous solutions has the highest boiling point?

Similar Questions

Which of the following is not a secondary messenger?

$A$ light wave has a frequency of $4 \times 10^{14} ~Hz$ and a wavelength of $5 \times 10^{-7} ~m$ in a medium. The refractive index of the medium is:

Root cap is absent in

$A$ tetrahedron has vertices at $O(0, 0, 0)$,$A(1, 2, 1)$,$B(2, 1, 3)$,and $C(-1, 1, 2)$. The angle between the faces $OAB$ and $ABC$ is:

Which of the following statements is not correct?

Vedclass Test Series

Exam Paper Generator

Online Exam Module