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7 April, 15:21

What mass of water is produced from the complete combustion of 5.50*10-3g of methane?

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  1. 7 April, 15:43
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    The reaction equation is CH4 + 2O2 = CO2 + 2H2O. The ratio of mol number of water and methane is 1:2. The mol number of methane is 5.5*10^ (-3) / 16=3.4*10^ (-4) mol. The mass of water is 18*3.4*10^ (-4) * 2=1.2*10^ (-2) g.
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