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

3.4.1.1) Drug weight from PPM and total Weight Easy 1


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How many grams will a solution weigh, if it contains 1.7457 g of a drug? The label claims 75.9 PPM.


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lb equals 23000 g kg

    PPM is the number of grams present per 1 million (1,000,000) grams of the preparation or solution or mixture.
    75.9 PPM means, there is 75.9 g of drug present in each million (1,000,000) g of the preparation.
    Weight of drug = 1.7457 g.
    Therefore, we can write:
    `(75.9 \quad g)/(1,000,000\quad g)=(1.7457\quad g)/x therefore x = 23000` g. Ans.


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