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Byju's Answer
Standard IX
Chemistry
What Is Acid by Arrhenius Theory?
Ionisation eq...
Question
Ionisation equations of Phosphoric acid are given
H
3
PO
4
------ H
+
+ A
A ------ H
+
+ HPO
4
2-
HPO
4
2-
------ H
+
+ B
Write down the formulae of ions A and B
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Solution
H3PO4 = H+ + H2PO4-
H2PO4- = H+ + HPO4(2-)
HPO4(2-) = H+ + PO4(3-)
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Q.
Number of
H
+
ions that one molecule of phosphoric acid gives on ionisation are:
Q.
Th normality of 0.3 M phosphorus acid
(
H
3
P
O
3
)
, phosphoric acid
(
H
3
P
O
4
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and boric acid
(
H
3
B
O
3
)
are respectively
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Q.
H
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.
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H
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:
Q.
Phosphoric acid is widely used in carbonated beverages, detergents, toothpaste and fertilizers. The mass percentages of
H
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and
O
in phosphoric acid are
H
−
3.06
P
−
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%
,
O
−
65.31
%
. The atomic masses
H
=
1
,
P
=
31
and
O
=
16
.
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