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

May 15, 2017

$88.0 \cdot g$ with respect to carbon dioxide...........

#### Explanation:

We interrogate the stoichiometric reaction:

$C {H}_{4} \left(g\right) + 2 {O}_{2} \left(g\right) \rightarrow C {O}_{2} \left(g\right) + 2 {H}_{2} O \left(l\right)$

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

As with any reaction, mass and charge are CONSERVED.

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