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Calculate the equivalent weight of follo...

Calculate the equivalent weight of following assuming molecular weight M
(i) `H_(3)BO_(3)`
(ii) `H_(3)PO_(2)`
(iii) `FeSO_(4).(NH_(4))_(2).6H_(2)O`
(iv) `K_(2)SO_(4)Cr_(2)(SO_(4))_(3).24H_(2)O`
(v) `Al_(2)O_(3)`
(vi) `HNO_(3)`
(vii) `MgCO_(3)`
(Viii) `CaSO_(4)`

Text Solution

Verified by Experts

The correct Answer is:
(i) M
(ii) M
(iii) `(M)/(4)`
(iv) `(M)/(8)`
(v) `(M)/(6)`
(vi) M
(vii) `(M)/(2)`
(viii) `(M)/(2)`
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Draw the structures of (i) H_(3)PO_(2) " " (ii) H_(2)SO_(5) " " (iii) H_(2)SO_(3) " " (iv) H_(2)SO_(4) " " (v) H_(2)S_(2)O_(7) .

Write the empirical formula of the compounds having the molecular formulae : (i) C_(6)H_(6) , (ii) C_(6)H_(12) , (iii) H_(2)O_(2) , (iv) Na_(2)CO_(3) , (v) B_(2)H_(6) , (vi) N_(2)O_(2) , (vii) H_(3)PO_(4) , (viii) Fe_(2)O_(3) , (ix) C_(2)H_(2) , (x) N_(2)O_(5)

H_(4)underline(B_(2))O_(6)+H_(2)O to H_(3)BO_(3)+H_(2)O_(2)

The equivalent weight of H_(2)SO_(4) in the following reaction is Na_(2)Cr_(2)O_(7)+3SO_(2)+H_(2)SO_(4)rarr3Na_(2)SO_(4)+Cr_(2)(SO_(4))_(3)+H_(2)O

CaSO_(3)darr+H_(2)SO_(4)toCaSO_(4)+SO_(2)uarr+H_(2)O

Balance the following equations: (i) H_(3)PO_(3) to H_(3)PO_(4) + PH_(3) (ii) Ca + H_(2)O to Ca(OH)_(2) + H_(2) (iii) Fe_(2)(SO_(4))_(2) + NH_(3) + H_(2)O to Fe(OH)_(3) + (NH_(4))_(2)SO_(4)