IIT JEE , AIEEE Forum - Chemistry , Physical Chemistry

sudeep.kumar

Its simple mathematics dear... some variables and some calculations...

Let the weight of chalk is x
and the weight of clay is y

Chalk is chemically calcium carbonate (M = 100)..
so 100 gm of chalk will evolve 44gm carbon dioxide on heating.
Hence x gram will evolve 44x/100 gm

Similarly, 100gm clay looses 11gm moisture..
so, y gram clay will loose 11y/100 gm moisture..

now..given that

x + y = 5

44x/100 + 11y/100 = 1.1

two liner equations in two variables.. it'd be better u do it urself now.. and tell me if u cant get the ans.

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