Thursday, January 26, 2012

How do we calculate percentage of Zn in Zinc sulphate hepta hydrate?

Also explain the mathematical relation between specific gravity and concentration of solution.How do we calculate percentage of Zn in Zinc sulphate hepta hydrate?
zinc sulphate heptahydrate= ZnSO4.7H2O

ZnSO4.7H2O= 287.54 g/mole

Zn= 65.38 g/mole

% Zn= Zn/ZnSO4.7H20 x 100

% Zn= 65.38/287.54 x 100= 12.3 %



As solute(density %26gt;1) is added to water, its conc. increases and it density increases

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