Question

Please explain to me how to find molar ratios for this question: Given the balanced equation, 2 SO2 + O2 arrow 2 SO3, what is the molar ratio of O2 to SO3? (Points : 3)
2:1
1:2
2:2
2:3

Answer 1

@aaronq

Answer 2

the molar ratio is the number (i.e. fraction) the stoichiometric of the substances you're comparing make.

\(2 SO_2+O_2→2 SO_3\)

\(SO_2:O_2 \) is 2:1
\( O_2:SO_3 \) is 1:2
\(SO_2:SO_3\) is 2:2 or 1:1