Hard Chemistry Chapter 01: Solutions Class 12 Level 6

5.85 ग्राम सोडियम क्लोराइड को घोलकर 500 मिलीलीटर विलयन बनाया गया। मोलरता कितनी होगी?

5.85 g sodium chloride is dissolved to make 500 mL solution. What is the molarity?

Explanation opens after your attempt
Correct Answer

B. 0.2 मोल प्रति लीटर / 0.2 mol L-1

Step 1

Concept

First find moles of solute and convert volume into litres.

Step 2

Why this answer is correct

Moles of sodium chloride = 5.85 ÷ 58.5 = 0.1. Volume = 500 mL = 0.5 L. Molarity = 0.1 ÷ 0.5 = 0.2.

Step 3

Exam Tip

Never calculate molarity without converting mL into L. चरण 1: पहले विलेय के मोल निकालें और आयतन को लीटर में बदलें। चरण 2: सोडियम क्लोराइड के मोल = ५.८५ ÷ ५८.५ = ०.१। आयतन = ५०० मिलीलीटर = ०.५ लीटर। मोलरता = ०.१ ÷ ०.५ = ०.२। चरण 3: मिलीलीटर को लीटर में बदले बिना मोलरता न निकालें।

FAQs

Chemistry Question FAQs

What is the correct answer to this Chemistry MCQ?

The correct answer is B. 0.2 मोल प्रति लीटर / 0.2 mol L-1.

Where can I practice more Chemistry questions?

Open the subject page or level quiz links on this page to practice more active Chemistry MCQs with answers and explanations.

Related Questions

Student Class Required

Select your class first

Quiz questions, daily challenge and practice pages will open according to your selected class. Class 11/12 ke liye stream bhi select karein.