Easy Chemistry Chapter 01: Solutions Class 12 Level 6

2 मोलल विलयन बनाने के लिए 1 किलोग्राम विलायक में कितने मोल विलेय चाहिए?

How many moles of solute are needed in 1 kg solvent to make a 2 m solution?

Explanation opens after your attempt
Correct Answer

A. 2 मोल / 2 mol

Step 1

Concept

Molality = moles/kg solvent.

Step 2

Why this answer is correct

2 = moles/1, so moles = 2.

Step 3

Exam Tip

With 1 kg solvent, molality directly gives moles. चरण 1: मोललता = मोल/किलोग्राम विलायक। चरण 2: 2 = मोल/1, इसलिए मोल = 2। चरण 3: 1 किलोग्राम विलायक होने पर मोललता का मान सीधे मोल बताता है।

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