SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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1/1, 000, 000
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10/1, 000, 000
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100/1, 000, 000
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1, 000/1, 000, 000
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Detailed explanation-1: -This is an abbreviation for “parts per million” and it also can be expressed as milligrams per liter (mg/L).
Detailed explanation-2: -For example, if you want 100ml 1ppm solution, take 0.1mL from stock(1000 ppm) and make up to 100ml in standard measuring flask using desired solvent.
Detailed explanation-3: -Parts per million and parts per billion may be converted from one to the other using this relationship: 1 part per million = 1, 000 parts per billion. For water, 1 ppm = approximately 1 mg/L (also written as mg/l) of contaminant in water, and 1 ppb = 1 ug/L (also written as ug/l).
Detailed explanation-4: -Just as per cent means out of a hundred, so parts per million or ppm means out of a million. Usually describes the concentration of something in water or soil. One ppm is equivalent to 1 milligram of something per liter of water (mg/l) or 1 milligram of something per kilogram soil (mg/kg).