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    Determining LD50 from the calculated lethal dose

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    The lethal inhalation dose of sarin for a 200lb person has been determined to be 0.0015 mg. Determine the LD50 of sarin that researchers used to calculate this lethal inhalation dose.

    A. 1.4 x 10-4 mg/kg
    B. 0.16 x 10-4 mg/kg
    C. 1.8 x 10-5 mg/kg
    D. 0.00023 mg/kg

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    Solution Summary

    If we know a calculated lethal dose of a poisonous gas, how can we find the known LD50 value of that gas?