Which term is good for expressing a very small impurity in salty water?
Answer and explanation
Correct answer: ppm
ppm means parts per million and is designed for very small concentrations. In dilute water samples, it conveniently expresses trace impurities, often approximately as milligrams per kilogram of water. Molarity and molality are valid in appropriate calculations, but they are not the only choices and may be less convenient for reporting trace levels.
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What is the correct answer to this question?
ppm
Why is this the correct answer?
ppm means parts per million and is designed for very small concentrations. In dilute water samples, it conveniently expresses trace impurities, often approximately as milligrams per kilogram of water. Molarity and molality are valid in appropriate calculations, but they are not the only choices and may be less convenient for reporting trace levels.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
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