What is 500 ppm in percent?
Answer and explanation
Correct answer: 0.05 percent
To convert ppm into percent, use the governing relationship 1% = 10,000 ppm. Therefore, percent = ppm ÷ 10,000, so 500 ppm ÷ 10,000 = 0.05%. Option A is correct. The same result follows from (500/1,000,000) × 100 = 0.05%. The larger values in the other options come from using an incorrect conversion factor or moving the decimal point too far.
Frequently asked questions
What is the correct answer to this question?
0.05 percent
Why is this the correct answer?
To convert ppm into percent, use the governing relationship 1% = 10,000 ppm. Therefore, percent = ppm ÷ 10,000, so 500 ppm ÷ 10,000 = 0.05%. Option A is correct. The same result follows from (500/1,000,000) × 100 = 0.05%. The larger values in the other options come from using an incorrect conversion factor or moving the decimal point too far.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
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