Calculate the percentage composition by Mass of sulphur in tetraoxosulphate(6)acid
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Answer:
We need to find the molar mass of this acid, sulfuric acid:
2
+
32
+
4
(
16
)
=
98
g
/
m
o
l
.
The molar mass of sulfur is 32 g/mol.
Note that there is 1 mole of sulfur in 1 mole of this acid. This fact is inferred directly from the molecular formula.
Hence, the percentage by mass of sulfur in sulfuric acid is:
32
g
98
g
×
100
%
=
32.7
%
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