Expert Chemistry Chapter 01: Solutions Class 12 Level 4

यदि मोलरता समान रखनी हो और विलयन का आयतन दोगुना कर दिया जाए, तो विलेय के मोलों में क्या परिवर्तन चाहिए?

If molarity is to be kept the same and the volume of solution is doubled, what change is needed in moles of solute?

Explanation opens after your attempt
Correct Answer

A. मोल भी दोगुने करने होंगे / Moles must also be doubled

Step 1

Concept

Molarity = moles/volume.

Step 2

Why this answer is correct

If volume is doubled and molarity must stay same, moles must also be doubled.

Step 3

Exam Tip

To keep a ratio constant, numerator and denominator change in the same ratio. चरण 1: मोलरता = मोल/आयतन है। चरण 2: आयतन दोगुना हो और मोलरता समान रखनी हो, तो मोल भी दोगुने होने चाहिए। चरण 3: स्थिर अनुपात के लिए ऊपर और नीचे समान अनुपात में बदलते हैं।

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