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Grade: 12
        one gm of a metal carbonate gave 0.56g of its oxide on heating.Determine the equivalent weight of the metal.
10 years ago

Answers : (2)

Ramesh V
70 Points
							

let metal carbonate be : MCO3  and metal oxide is MO

MCO3 ---->  MO      +    CO2

1gm           0.56g

so the oxide is CaO (M.wt = 56) and metal carbonate is CaCO3 (M. wt = 100)

metal is Ca (M.wt = 40) and metal ion is Ca++

its eq. wt ( 40 /2 ) = 20

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10 years ago
JAGABANDHU PANDA
8 Points
							

Please refer to the answer of Mr. Ramesh. If the metal X is considered and the weight of the metal is M gm then the equivalent weight of the metal X would be M/2 as the definition of equivalent weight suggests that the weight of the metal that combines with 8 parts of Oxygen is the equivalent weight of that substance.

Please note that the atomic weight of Oxygen is 16 gm.

JAGABANDHU PANDA

IIT Delhi

10 years ago
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