Calculate the mass of sulfur required to obtain sulfur oxide (IV) with an amount of 160 g (S + O2 = SO2).

Given:
m (SO2) = 160g
m (S) -?
S + O2 = SO2
M (SO2) = 32 + 16 * 2 = 64 g / mol
n (SO2) = m / M = 160/64 = 2.5 mol
1 mol S – 1 mol SO2
x mol S – 2.5 mol SO2
n (SO2) = 2.5 mol
M (S) = 32
m (S) = m * M = 32 * 2.5 = 80g
Answer: 80g



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