In the course of a three-stage synthesis, 2.5 kg of 100% sulfuric acid was obtained from 1 kg of sulfur.
| July 29, 2021 | education
In the course of a three-stage synthesis, 2.5 kg of 100% sulfuric acid was obtained from 1 kg of sulfur. Determine the mass fraction of the yield of sulfuric acid from sulfur.
From 1 mole of sulfur, with an ideal, 100% yield of substances in a 3-stage synthesis, 1 mole of sulfuric acid should also be formed: S -> H2SO4.
And we had 1000 g of sulfur: 32 g / mol = 31.25 mol, acid became 2500 g: 98 g / mol = 25.51.
The yield was (25.51: 31.25) * 100% = 81.6% of theoretical.
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