Hard Chemistry Chapter 01: Solutions Class 12 Level 6

98 ग्राम सल्फ्यूरिक अम्ल को घोलकर 500 मिलीलीटर विलयन बनाया गया। विलयन की मोलरता कितनी है?

98 g sulphuric acid is dissolved to make 500 mL solution. What is the molarity of the solution?

Explanation opens after your attempt
Correct Answer

C. 2.0 मोल प्रति लीटर / 2.0 mol L-1

Step 1

Concept

Molar mass of sulphuric acid is 98 g per mol.

Step 2

Why this answer is correct

Moles = 98 ÷ 98 = 1. Volume 500 mL = 0.5 L. Molarity = 1 ÷ 0.5 = 2.0.

Step 3

Exam Tip

If 1 mole is present in half a litre, molarity is 2 mol L^-1. चरण 1: सल्फ्यूरिक अम्ल का मोलर द्रव्यमान ९८ ग्राम प्रति मोल है। चरण 2: मोल = ९८ ÷ ९८ = १। आयतन ५०० मिलीलीटर = ०.५ लीटर। मोलरता = १ ÷ ०.५ = २.०। चरण 3: आधे लीटर में १ मोल होने पर मोलरता २ मोल प्रति लीटर होती है।

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