Mole ConceptHard
Question
Calculate the mass percent (w/w) of sulphuric acid in a solution prepared by dissolving 4 g of sulphur trioxide in a 100 ml sulphuric acid solution containing 80 mass percent (w/w) of H2SO4 and having a density of 1.96 g/ml. (molecular weight of H2SO4 = 98). Take reaction SO3 + H2O → H2SO4
Options
A.80.8%
B.84%
C.41.65%
D.None of these
Solution
Mass of H2SO4 formed by 4g SO3 = 4.9 g
Mass % of H2 SO4 =
= 80.8 %
Mass % of H2 SO4 =
= 80.8 %Create a free account to view solution
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