यदि 20 ग्राम विलेय और 180 ग्राम विलायक हैं, तो द्रव्यमान प्रतिशत कितना होगा?

If there are 20 g solute and 180 g solvent, what is the mass percentage?

Explanation opens after your attempt
Correct Answer

A. 10 प्रतिशत10 percent

Step 1

Concept

Total solution = 20 + 180 = 200 g.

Step 2

Why this answer is correct

Mass percentage = 20/200 × 100 = 10.

Step 3

Exam Tip

Putting 180 in the denominator gives a wrong answer. चरण 1: कुल विलयन = 20 + 180 = 200 ग्राम। चरण 2: द्रव्यमान प्रतिशत = 20/200 × 100 = 10। चरण 3: हर में 180 रखने से गलत उत्तर आएगा।

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यदि 20 ग्राम विलेय और 180 ग्राम विलायक हैं, तो द्रव्यमान प्रतिशत कितना होगा? / If there are 20 g solute and 180 g solvent, what is the mass percentage?

Correct Answer: A. 10 प्रतिशत / 10 percent. Explanation: चरण 1: कुल विलयन = 20 + 180 = 200 ग्राम। चरण 2: द्रव्यमान प्रतिशत = 20/200 × 100 = 10। चरण 3: हर में 180 रखने से गलत उत्तर आएगा। / Step 1: Total solution = 20 + 180 = 200 g. Step 2: Mass percentage = 20/200 × 100 = 10. Step 3: Putting 180 in the denominator gives a wrong answer.

Which concept should I revise for this Chemistry MCQ?

Total solution = 20 + 180 = 200 g.

What exam hint can help solve this Chemistry question?

Putting 180 in the denominator gives a wrong answer. चरण 1: कुल विलयन = 20 + 180 = 200 ग्राम। चरण 2: द्रव्यमान प्रतिशत = 20/200 × 100 = 10। चरण 3: हर में 180 रखने से गलत उत्तर आएगा।