Convert mg per mL into ratio expression

3. Percent, Ratio, mg/mL, PPM, PPB 3.3) mg/mL 3.3.1) mg per mL - General

3.3.1.1) mg per mL - General Normal 1


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If the strength of a solution is written as 5.263 mg/mL, then how will it be expressed in ratio strength?


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lb equals 1 : 190 kg

    5.263 mg/mL means, the solution contains 5.263 mg of drug in each 1 mL. In order to express the ratio strength, we must keep the numerator in gram unit, also, the numerator should be equal to 1.
    Since 1000 mg equals 1 g, we can write 5.263 mg as 0.005 g. Thus, for this solution, we can write:
    `(0.005263\quad g)/(1\quad mL)=((0.005263/0.005263) \quad g)/((1/0.005263) \quad mL)`
    `=(1\quad g)/(190\quad mL)`.
    This is equivalent to 1 : 190. Answer.


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