PPM related problem - Random question
3. Percent, Ratio, mg/mL, PPM, PPB 3.4) PPM and PPB 3.4.1) PPM, PPB - General
3.4.1.1) Drug weight from PPM and total Weight Hard 1
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The strength of a medication is expressed as 59.4 PPM. How many milligrams of the drug will 31 kilogram of this product contain?
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lb equals 1841.4 mg kg
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59.4 PPM means, there is 59.4 g of drug in each 1,000,000 g of the mixture.
31 kilogram means 31000 grams. Therefore, we can write:
`(59.4 \quad g)/(1,000,000\quad g)=x/(31000\quad g) therefore x = 1.8414` g.
Now, this g unit has to be converted to mg.
`(1000\quad mg)/(1\quad g)= y/(1.8414\quadg) therefore y = 1841.4` mg Ans.