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Tardigrade
Question
Chemistry
The mass of oxalic acid crystals (H2C2O4.2H2O) required to prepare 50 mL of a 0.2 N solution is:
Q. The mass of oxalic acid crystals
(
H
2
C
2
O
4
.2
H
2
O
) required to prepare
50
m
L
of a
0.2
N
solution is:
1903
219
Some Basic Concepts of Chemistry
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A
4.5
g
8%
B
6.3
g
12%
C
0.63
g
60%
D
0.45
g
20%
Solution:
H
2
C
2
O
4
.2
H
2
O
=
2
+
24
+
64
+
36
=
126
and Equivalent wt.
=
[
2
126
]
0.2
=
(
2
126
)
×
50
W
×
1000
∴
W
=
0.63
g