Easy Chemistry Chapter 01: Solutions Class 12 Level 5

0.75 मोल विलेय 1.5 किलोग्राम विलायक में घोला गया है। मोललता क्या है?

0.75 mole solute is dissolved in 1.5 kg solvent. What is the molality?

Explanation opens after your attempt
Correct Answer

A. 0.5 मोलल / 0.5 m

Step 1

Concept

Molality = moles of solute/kg of solvent.

Step 2

Why this answer is correct

0.75/1.5 = 0.5 m.

Step 3

Exam Tip

In molality, mass of solvent is the denominator. चरण 1: मोललता = विलेय के मोल/किलोग्राम में विलायक। चरण 2: 0.75/1.5 = 0.5 मोलल। चरण 3: मोललता में विलायक का द्रव्यमान ही हर में आता है।

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