Single Choice

The value of van't Hoff factors for $$KCl, NaCl$$ and $${K}_{2}{SO}_{4}$$, respectively, are :

A2, 2 and 2
B2, 2, and 3
Correct Answer
C1, 1 and 2
D1, 1 and 1

Solution

i i) For KCl 2 KCl⟶ K++Cl−⏟ {since i=n for strong electrolytes} ii) NaCl NaCl⟶ Na++Cl−⏟ n=2 iii) K2SO4 K2SO4⟶ 2K++SO 2− 4 ⏟ n=3 i=3

SIMILAR QUESTIONS

Solutions

In which case van't Hoff factor is maximum (assuming no hydrolysis)?

Solutions

At same temperature which pair of the following solutions are isotonic?

Solutions

If $$\alpha$$ is the degree of dissociation of $${Na}_{2}{SO}_{4}$$, the vant Hoff's factor ($$i$$) used for calculating the molecular mass is:

Solutions

Which of the following salt has the same value of Van't Hoff factor i as that of $$K_3 [Fe(CN)_6]$$?

Solutions

The Van't Hoff factor, i for a $$0.2$$ molal aqueous solutions of urea is:

Solutions

The Van't Hoff factor for sodium phosphate would be:

Solutions

A $$1.2$$% of solution of $$NaCl$$ is isotonic with $$7.2$$% of solution of glucose. Calculate the van't Hoff's factor of $$NaCl$$ solution.

Solutions

The freezing point of a solution containing 5.85 g of $$NaCl$$ in 100g of water is $$-3.348^o$$C. Calculate van't Hoff factor 'i' for this solution. What will be the experimental molecular weight of NaCI? ($$K_f$$ for water = $$1.86 K kg mol^{-1}$$, at. wt. Na = 23, Cl = 35.5)

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