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

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

Total tried:       Correct:       Wrong:

42 Kg of a solution contains 1.2936 g of a therapeutic agent. Express the strength in PPM unit.

Click on the button below to see the answer and explanations

lb equals 30.8 PPM kg

    PPM is the number of grams present per 1 million (1,000,000) grams of the preparation or solution or mixture. In this case,
    Weight of drug = 1.2936 g.
    And total weight of the mixture = 42 Kg.
    Converting this weight into gram unit: Weight in g
    `= 42 × 1000=42000` g.
    Using the formula for PPM, we can write:
    `(1.2936 \quad g)/(42000\quad g)=x/(1,000,000\quad g) therefore x = 30.8` g.
    Therefore, the potency is 30.8 PPM. Ans.