Guest

one gm of a metal carbonate gave 0.56g of its oxide on heating.Determine the equivalent weight of the metal.

one gm of a metal carbonate gave 0.56g of its oxide on heating.Determine the equivalent weight of the metal.

Grade:12

2 Answers

Ramesh V
70 Points
12 years ago

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

--

Please feel free to post as many doubts on our disucssion forum as you can. If you find any question difficult to understand - post it here and
we will get you the answer and detailed solution very quickly.We are all IITians and here to help you in your IIT JEE preparation. All the best.

Regards,
Naga Ramesh
IIT Kgp - 2005 batch
 

JAGABANDHU PANDA
8 Points
12 years ago

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

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free