posted by Sarah .
What mass of sulfur msut be used to produce 17.1 L of gaseous sulfur dioxide at STP according to the following equation?
S8 (s) + 8O2 (g) -> 8 SO2 (g)
Answer in units of g
one mole of S8 produces 8*22.4 lters
so you want the following number of moles of S8:
convert that to grams of S8