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Byju's Answer
Standard IX
Chemistry
Arrehenius Theory of Acids and Bases
The basicity ...
Question
The basicity of oleum is:
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Solution
Basicity of acids refer to the number of
H
+
ions that can be released upon dissolution. In the case of oleum, which is also known as pyrosulphuric acid
(
H
2
S
2
O
7
)
, the basicity is
2.
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Similar questions
Q.
What is the basicity of oleum?
Q.
One way to express the concentration of oleum (fuming
H
2
S
O
4
or
H
2
S
2
O
7
, i.e.,
H
2
S
O
4
+
S
O
3
) is in terms of
%
oleum.
(
100
+
X
)
%
oleum means that
X
g
H
2
O
reacts with equivalent amount of
S
O
3
to give oleum.
%
of free
S
O
3
in
109
%
oleum is:
Q.
An oleum sample is labelled as
118
%
. The mass of
H
2
S
O
4
in
100
g oleum sample is:
Q.
The percent free
S
O
3
is an oleum is
20
%
. Label the sample of oleum in terms of percent
H
2
S
O
4
.
Q.
An oleum sample was labbled as 101.8 oleum. What is the percentage of free
S
O
3
in this sample?
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