Which of the following solution are isotonic with respect to 0.5 M NaCl solution having degree of dissociation=0.8.

Question

Which of the following solution are isotonic with respect to 0.5 M NaCl solution having degree of dissociation=0.8.

Which of the following solution are isotonic with respect to 0.5 M NaCl solution having degree of dissociation=0.8.
A. 153.9gm of sucrose dissolved in 500ml of solution.
B. `0.3"m aQ"."Na"_(2)"SO"_(4)` solution undergoing 100% ionization.
C. `1.8%"w"//"w aQ."` NaOH solution undergoing 100% ionization.
D. 1.2M benzoic acid in a solution of benzene where the acid dimerzes to an extent of 50%

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - A,B,C,D
For NaCl:-
`"ic"=0.5xx[1+(2-1)0.8]0.9" M"`
For Sucrose solution:-
`"ic"=153.9/342xx2=0.9" M"`
For `"Na"_(2)"SO"_(4)` solution:-
`"ic"=0.3xx3=0.9" M"`
For NaOH :-
`"ic"=1.8/40xx10xx2=0.9"M"`
For Benzene acid :-
`"ic"=0.2xx3/4=0.9`

4 views Answered 2023-02-05 15:29