Expert Chemistry Chapter 01: Solutions Class 12 Level 5

सौ मिलीलीटर पाँच मोलर विलयन में कितना जल मिलाकर शून्य दशमलव पाँच मोलर विलयन बनाया जा सकता है?

How much water should be added to 100 mL of 5 M solution to prepare a 0.5 M solution?

Explanation opens after your attempt
Correct Answer

C. 900 मिलीलीटर / 900 mL

Step 1

Concept

In dilution moles of solute remain constant.

Step 2

Why this answer is correct

5 multiplied by 100 equals 0.5 multiplied by final volume so final volume is 1000 mL.

Step 3

Exam Tip

Initial volume was 100 mL so water added is 900 mL. चरण 1: पतलन में विलेय के मोल समान रहते हैं। चरण 2: पाँच गुणा सौ बराबर शून्य दशमलव पाँच गुणा अंतिम आयतन से अंतिम आयतन एक हजार मिलीलीटर आता है। चरण 3: प्रारंभिक सौ मिलीलीटर था इसलिए जोड़ने वाला जल नौ सौ मिलीलीटर है।

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The correct answer is C. 900 मिलीलीटर / 900 mL.

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