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nintendogamer91
Lv 4
nintendogamer91 asked in Science & MathematicsChemistry · 1 decade ago

Air bags...?

A research chemist designing an air bag is looking at carbon dioxide as a possible gas for bag inflation. One of the reactions the chemist is working with is the following.

MgCO3(s) ---> MgO(s) + CO2(g)

How many grams of magnesium carbonate are needed to produce enough carbon dioxide to inflate an air bag to a volume of 65 L? Use 1.961 g/L as the density of carbon dioxide gas.

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  • Dr.A
    Lv 7
    1 decade ago
    Favorite Answer

    Mass CO2 = 65 L x 1.961 g/L = 127.5 g

    Moles CO2 = 127.5 g / 44 g/mol = 2.90

    = moles MgCO3

    Mass MgCO3 = 2.90 g x 84.32 g/mol =244.3 g

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