Determine weight of total content from PPM from the weight of the drug

3. Percent, Ratio, mg/mL, PPM, PPB 3.4) PPM and PPB 3.4.1) PPM, PPB - General Drug weight from PPM and total Weight Easy 1

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The potency of a preparation is 67.1 PPM. How many kilograms will this preparation weigh, if it contains 2482.7 mg of a drug?

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lb equals 37 Kg kg

    PPM is the number of grams present per 1 million (1,000,000) grams of the preparation or solution or mixture.
    67.1 PPM means, there is 67.1 g of drug present in each million (1,000,000) g of the preparation.
    Weight of drug = 2482.7 mg.
    Converting it to grams `=2482.7/1000=2.4827` g.
    Therefore, we can write:
    `(67.1 \quad g)/(1,000,000\quad g)=(2.4827\quad g)/x therefore x = 37000` g.
    Converting g into Kg:
    `=37000/1000=37` Kg. Ans.

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