Easy Chemistry Chapter 01: Solutions Class 12 Level 6

90 ग्राम ग्लूकोज को 500 मिलीलीटर विलयन में घोला गया। मोलर द्रव्यमान 180 ग्राम प्रति मोल है। मोलरता क्या है?

90 g glucose is dissolved in 500 mL solution. Molar mass is 180 g per mol. What is the molarity?

Explanation opens after your attempt
Correct Answer

A. 1 मोलर / 1 M

Step 1

Concept

Moles = 90/180 = 0.5 mol.

Step 2

Why this answer is correct

500 mL = 0.5 L, so molarity = 0.5/0.5 = 1 M.

Step 3

Exam Tip

Find moles first, then litres, then molarity. चरण 1: मोल = 90/180 = 0.5 मोल। चरण 2: 500 मिलीलीटर = 0.5 लीटर, इसलिए मोलरता = 0.5/0.5 = 1 मोलर। चरण 3: पहले मोल, फिर लीटर, फिर मोलरता निकालें।

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