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One part per billion (ppb) denotes one part per 1,000,000,000 parts, one part in 109, 1/1,000,000,000 * 100% = 0.0000001% (or 1% = 10,000,000 ppb) and a value of 1 × 10−9. This is equivalent to one drop of water diluted into 250 chemical drums (50 m3), or about three seconds out of a century.
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How much is 300ng ml cocaine?
300ng/ml is 300 micrograms per litre which is the same as 300ppb (parts per billion), or 0.3ppm (parts per million)
What does the term percentage mean?
[parts] per hundred.
How do you convert micrograms per kilogram to parts per million?
Well, honey, to convert micrograms per kilogram to parts per million, you need to multiply by 1,000. Why? Because there are 1,000 micrograms in a milligram, and 1,000,000 parts per million in a kilogram. So, it's just a matter of shifting those decimal places around to get the job done.
How do you convert parts per thousand into parts per million?
-- take the number of parts per thousand-- multiply it by 1,000-- the answer is the number of parts per million
What is a billionth?
A billionth is one of a billion equal parts.
