Hard Chemistry Chapter 01: Solutions Class 12 Level 4

दो प्रतिशत द्रव्यमान-आयतन विलयन के सात सौ पचास मिलीलीटर में विलेय का द्रव्यमान कितना होगा?

What mass of solute is present in 750 mL of a 2 percent mass-volume solution?

Explanation opens after your attempt
Correct Answer

B. 15 ग्राम / 15 g

Step 1

Concept

2 percent mass-volume means 2 g solute in 100 mL solution.

Step 2

Why this answer is correct

In 750 mL, solute = 2 ÷ 100 × 750 = 15 g.

Step 3

Exam Tip

In mass-volume percent, solute mass is found from total volume. चरण 1: दो प्रतिशत द्रव्यमान-आयतन का अर्थ सौ मिलीलीटर विलयन में दो ग्राम विलेय है। चरण 2: सात सौ पचास मिलीलीटर में विलेय = दो ÷ सौ × सात सौ पचास = पंद्रह ग्राम। चरण 3: द्रव्यमान-आयतन प्रतिशत में कुल आयतन से ग्राम मात्रा निकाली जाती है।

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