Please explain equivalent concept used to solve stoichiometry problem

Asked by  | 2nd Jun, 2008, 09:07: PM

Expert Answer:

Equivalent concept is similar to mole concept i.e in any chemical reaction the reactants react in same equivalents to give same equivalents of products.

BaCl2+Al2[SO4]--->BaSO4 + AlCl3
      a              b                   0              0 [Before reaction]
      0           b-a                   a               a  [after rection]

Where a and b are the number of equivalents. ( Number of equivalents = weight/(equivalent weight) )

Answered by  | 17th Jun, 2008, 04:59: PM

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