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Thread: Answer the question using conversion factors

  1. #1
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    Exclamation Answer the question using conversion factors

    If Gasp cigarettes have 5 mG tar and 0.4 mG nicotine per cigarette and there are 20 cigarettes per pack, how many packs of cigarettes would have to be smoked to coat your lungs with 8 oz of tar? How many packs would you have to smoke to coat you lungs with 1 gram of nicotine?


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  2. #2
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    Re: Answer the question using conversion factors

    the 2nd one is easy enough...

    $\dfrac{1 g}{0.0004g/cig} = 2500cig$

    $\dfrac{2500cig}{20cig/pack} = 125 pack$

    for the first one we need the conversion factor from mG to oz.

    google tells me that $1oz = 28349.5 mG$

    $8oz = 8oz \times 28349.5 mg/oz = 226796 mG$

    $\dfrac{226796mG}{5mG/cig} = 45359.2 cig$

    $\dfrac{45359.2 cig}{20 cig/pack} \approx 2268 pack$
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