Calculate the equivalent mass of underlines species :
1. `Na_(2)SO_(3)+ul(Na_(2)CrO_(4))to Na_(2)SO_(4)+Cr(OH)_(3)`
(ii) `Fe_(3)O_(4)+ul(KMnO_(4)) to Fe_(2)O_(3)+MnO_(2)`
(iii) `ul(2Na_(2)S_(2)O_(3))+I_(2)to Na_(2)S_(4)O_(6)+2NaI`
(iv) `ul(As_(2)S_(3))+10NO_(3)^(-)+4H^(+) to 10NO_(2)+2AsO_(4)^(3-)+3S+2H_(2)O`
(v) `ul(H_(3)PO_(3)) to H_(3)PO_(4)+PH_(3)`
(vi) `ul(5SO_(2))+2KMnO_(4)+2H_(2)O to K_(2)SO_(4)+2MnSO_(4)+2H_(2)_(2)SO_(4)`

Answer

(i) 54; (ii) 52.66; (iii) 158; (iv) `M.w.//10;` (v) 41; (vi) 32