Easy Chemistry Chapter 01: Solutions Class 12 Level 4

किसी विलयन में विलेय के 3 मोल और विलायक के 7 मोल हैं। विलायक का मोल अंश कितना है?

A solution has 3 moles solute and 7 moles solvent. What is the mole fraction of solvent?

Explanation opens after your attempt
Correct Answer

A. 0.7

Step 1

Concept

Total moles = 3 + 7 = 10.

Step 2

Why this answer is correct

Mole fraction of solvent = 7/10 = 0.7.

Step 3

Exam Tip

Put the moles of the asked component in the numerator. चरण 1: कुल मोल = 3 + 7 = 10। चरण 2: विलायक का मोल अंश = 7/10 = 0.7। चरण 3: जिस घटक का मोल अंश पूछा है, उसी के मोल ऊपर रखें।

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