Find the mass fraction of sulfur and oxide SO₃.
| December 21, 2020 | education
Find the molar mass of SO3
M (SO3) = Ar (S) + 3Ar (O) = 32 + 48 = 80 g / mol
Now we take a mass fraction of sulfur:
w (S) = 32/80 * 100% = 40%
Answer: w (S) = 40%
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