Sulfuric acid is made from sulfur by the sequence S -> SO2 -> SO3 -> H2SO4. If the overall yield is 80%, the mass of H2SO4 obtainable from 16 g of sulfur is (H = 1, S = 32, O = 16):

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Sulfuric acid is made from sulfur by the sequence $S SO X_{2} SO X_{3} H X_{2} SO X_{4}$ . If the overall yield is $80%$ , the mass of $H X_{2} SO X_{4}$ obtainable from $16 g$ of sulfur is (H = 1, S = 32, O = 16):

Each S atom ends up in one

H X_{2} SO X_{4}

n (S) = 16/32 = 0.50

mol, so the theoretical yield is

0.50 \times 98 = 49.0

g. At

80%

49.0 \times 0.80 = 39.2 g

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