Question

calculate equivalent mass of h3po2​

Answer 1

H =1

P =32

0=16

So 3(1)+32+2(16)

=3+32+64

=101..

Answer 2

3H  

3

​  

PO  

2

​  

→2H  

3

​  

PO  

3

​  

+PH  

3

​  

 

The oxidation number of P changes from +1 to +3 and -3.

Thus, the change in the oxidation number is 4.

Hence, the equivalence mass of H  

3

​  

PO  

2

​  

 in the disproportionation reaction is, Equivalent mass  

Change in the oxidation number

Formula mass =M/4.