1
skygirl
·2008-11-29 07:44:07
k another question,,,
suppose there's an eqn, like aA2+ -> bA5+ .... wat will be the eq wt of A?
should it be A/3?? or coeficients will play a role???
1
â–¬â—๋•kể álwáýکâ—
·2008-11-29 09:15:23
eq wt = formula wt. / n-factor,
where n- factor = valencey , basicity, acidity , change in oxidation no.,charge in radical............
so , here , eq wt = formula wt./change in oxidation no. per molecule
here, change in oxidation no = (O.N. of product - O.N. of reactant) x no. of atoms of molecule
so here , eq. wt. = formula wt./ (5 - 2) x 1 , (if A iz formula wt)
den, eq. wt. = A /3
here nothing to do wid a nd b , dey r just cofficient to balance, if dey remain as subscript den dey r used.
1357
Manish Shankar
·2008-11-29 11:29:16
for element undergoing disproportionate reaction
you can take n factor as
1/neq=1/n1 + 1/n2
neq=n1n2/(n1+n2)
Eq. Wt=M/neq
1
skygirl
·2008-11-30 05:37:48
wow! thanx...
dis i have seen in no text book till now..
1357
Manish Shankar
·2008-11-30 05:43:08
Actually I found it myself by taking some examples
still don't know if its applicable in all conditions