Gases emitted during volcanic

Question

Gases emitted during volcanic activity often contain high concentrations of hydrogen sulfide and sulfur dioxide. These gases may react to produce deposits of sulfur according to the equation:

2 H2S(g) + SO2(g) → 3 S(s) + 2 H2O(g)

If 218 g of H2S reacts, how many grams of sulfur will be produced?

Answer 1

So Amanda C.,

You know the drill, or should by now. Always convert mass units into moles, then carry proportionately through the equation according to the coefficients in the balanced equation, and lastly reconvert to mass units at the "other end".

Now a thought-question for you: given that these 2 gases will react together to produce elemental sulfur, why do you imagine that both reduced and oxidized forms of sulfur could co-exist in the out-gases from the volcano?

-- Cheers, --Mr. d.