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23 May, 23:35

Butane, c4h10, is a component of natural gas that is used as fuel for cigarette lighters. the balanced equation of the complete combustion of butane is 2c4h10 (g) + 13o2 (g) ?8co2 (g) + 10h2o (l) at 1.00 atm and 23? c, what is the volume of carbon dioxide formed by the combustion of 3.20 g of butane?

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  1. 24 May, 02:05
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    Molar mass of butane = 12g/mol*4+1g/mol*10=58g/mol

    Mass of 2 moles of butane=2mol*58g/mol=116g

    2c4h10 (g) + 13o2 (g) - >8co2 (g) + 10h2o (l)

    116g 8 moles

    3.20g x

    116g butane/8moles CO2=3.20g butane/x

    x=3.20g butane*8moles CO2/116g butane=0.2207moles CO2

    T=23°C=296K

    PV=nRT

    V=nRT/P=0.2207moles*0.082 (atm*dm³ / (K/mol)) * 296K / (1atm) = 5.36dm³
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