what should be the equivalent weight of phosphorus acid , if p=31, o=16 ,h=1
a) 82
b) 41
c) 20.5
d) none of these
Answers
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Answer: b) 41
Explanation:
The acid is dibasic .
Molecular weight of
H3PO3 = 31 + 16 + 1 = 82
Equivalent weight
= molecular weight /basicity
= 82/2
= 41
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