# the molality of aqueous naoh solution having 0.1 mole fraction of naoh is

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## Mole fraction of solute in an aqueous solution of NaOH is 0.1 . If the specific gravity of the solution is 1.4 , the molarity of the solution is

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Question

## Mole fraction of solute in an aqueous solution of NaOH is 0.1. If the specific gravity of the solution is 1.4, the molarity of the solution is

**A**

## 6.93

**B**

## 0.1

**C**

## 71.4

**D**

## 0.14

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Updated on : 2022-09-05

Solution Verified by Toppr

Correct option is A)

molarity (m)=(1-mole fraction of solute)×molecular mass of solvent

mole fraction of solute×1000

m= (1−0.1)(18) 0.1×1000 m=6.1728

We know, Relationship between molarity (m)

And molarity (m) is m 1 = m d − 1000

molecular mass of solute

6.1728 1 = M 1.4 − 1000 40 M 1.4 = 6.1728 1 + 1000 40 M 1.4 =0.202 M= 0.202 1.4 =6.93

option (A) is correct.

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## Molality of aq. NaOH solution having mole fraction of NaOH = 0.1 is

Molality of aq. NaOH solution having mole fraction of NaOH = 0.1 is

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Molality of aq. NaOH solution having mole fraction of NaOH = 0.1 is

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Molality of aq. NaOH solution having mole fraction of NaOH = 0.1 is

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SIMILAR QUESTIONS

**Q.**An aqueous solution of

N a O H having density 1.1 k g / d m 3 contains 0.02 mole fraction of N a O H

. The molality and molarity of

N a O H

solution respectively, are :

**Q.**4.0 g of NaOH contained in one deciliter of a solution. Calculate the following in this solution:

(i) Mole fraction of NaOH

(ii) Molality of NaOH

(iii) Molality of NaOH

(iii) Molarity of NaOH.

(At. wt. of Na = 23, O = 16; Density of NaOH solution is 1.038

g / c m 3 ).

## Mole fraction of solute in an aqueous solution of NaOH is 0.1. If the specific gravity of the solution is 1.4, the molarity of the solution is (A) 6.93 (B) 0.1 (C) 71.4 (D) 0.14

Mole fraction of solute in an aqueous solution of NaOH is 0.1. If the specific gravity of the solution is 1.4, the molarity of the solution is (A) 6.93 (B)

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Mole fraction of solute in an aqueous solution of NaOH is 0.1. If the specific gravity of the solution is 1.4, the molarity of the solution is (A) 6.93 (B) 0.1 (C) 71.4 (D) 0.14

Updated On: 27-06-2022

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বেঞ্জিনের একটি দ্রবণে দ্রবীভূত দ্রাবের মোল-ভগ্নাংশ 0.1 হলে, উক্ত দ্রবণের মোলালিটি কত?

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Guys, does anyone know the answer?