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Byju's Answer
Standard XII
Chemistry
Chelation
H3PO4+NaOH it...
Question
H3PO4+NaOH its equation is
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Q.
In the reaction
N
a
O
H
+
H
3
P
O
4
→
N
a
2
H
P
O
4
+
H
2
O
, the equivalent weight of
H
3
P
O
4
(phosphoric acid) is:
Q.
The equivalent weight of phosphoric acid
(
H
3
P
O
4
)
in the reaction,
N
a
O
H
+
H
3
P
O
4
→
N
a
H
2
P
O
4
+
H
2
O
is:
Q.
Assertion :Both
H
3
P
O
3
and
H
3
P
O
4
have the same number of hydrogen atoms but
H
3
P
O
4
is a tribasic acid and
H
3
P
O
3
is a dibasic acid Reason: 1 mole of
H
3
P
O
3
is neutralised by 2 moles of
N
a
O
H
while 1 mole of
H
3
P
O
4
is neutralised by 3 moles of
N
a
O
H
.
Q.
The equivalent weight of
N
a
H
2
P
O
4
in the following reaction
is:
N
a
O
H
+
H
3
P
O
4
→
N
a
H
2
P
O
4
+
H
2
O
Q.
How many grams of
H
3
P
O
4
is required to completely neutralize
120
g of
N
a
O
H
?
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