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

If the number of $5$-element subsets of the set $A = \{a_1, a_2, \ldots, a_{20}\}$ of $20$ distinct elements is $k$ times the number of $5$-element subsets containing $a_4$,then $k$ is

Which plot is the adsorption isobar for chemisorption?

If $f(x)=x e^{x(1-x)}$,then $f(x)$ is

Observe the following statements:
$A$. Three vectors are coplanar if one of them is expressible as a linear combination of the other two.
$R$. Any three coplanar vectors are linearly dependent.
Then,which of the following is true?

If $f(x) = \frac{1}{\sqrt{x + 2 \sqrt{2x - 4}}} + \frac{1}{\sqrt{x - 2 \sqrt{2x - 4}}}$ for $x > 2$,then $f(11)$ is equal to

Vedclass Test Series

Exam Paper Generator

Online Exam Module