What mass of carbon dioxide results from complete combustion of a #32.0*g# mass of methane?

1 Answer
anor277
May 15, 2017

#88.0*g# with respect to carbon dioxide...........

Explanation:

We interrogate the stoichiometric reaction:

#CH_4(g) + 2O_2(g) rarr CO_2(g) + 2H_2O(l)#

And this tells us UNEQUIVOCALLY that #16*g# of methane gas reacts with #64*g# of dioxygen, to give #44*g# of carbon dioxide, and #36*g# water.......

As with any reaction, mass and charge are CONSERVED.

And given #32.0*g# of methane reacts with #128*g# dioxygen, stoichiometry requires that #88*g# carbon dioxide will be evolved. How much water?

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