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CBSE Class 11-science Answered

equivalent mass of H3PO4 in the following reaction 

2NaOH + H3PO4 = Na2HP04 + 2H2O

Asked by rishamariyam222 | 28 Sep, 2021, 09:18: PM
Expert Answer
Equivalent mass of H3PO4 
 
Equivalent mass of H3PO4 is calculated by-
E q u i v a l e n t space m a s s space o f space H subscript 3 P O subscript 4 equals fraction numerator M o l a r space m a s s space o f space H subscript 3 P O subscript 4 over denominator n minus f a c t o r end fraction

n minus f a c t o r space equals space space 2 space left parenthesis space because space 2 space straight H space is space replaced space in space this space reaction right parenthesis

Molar space mass space of space straight H subscript 3 PO subscript 4 space equals 1 cross times 3 plus 31 plus 16 cross times 4 equals 3 plus 31 plus 64 equals 98

Equivalent space mass space of space straight H subscript 3 PO subscript 4 equals 98 over 2 equals 49 space gm space per space equivalent
Answered by Ravi | 30 Sep, 2021, 12:27: AM
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