Calculate the amount of 50% `H_(2)SO_(4)` required to decompose 25g calcium carbonate :-
Calculate the amount of 50% `H_(2)SO_(4)` required to decompose 25g calcium carbonate :-
A. 98gm
B. 49gm
C. 24.5gm
D. 196gm
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Correct Answer - B
`{:(CaCO_(3)+,H_(2)SO_(4),to,CaSo_(4),+H_(2)O+CO_(2),),(100g,98g,,,,):}`
`100g CaCO_(3) require 98 gm H_(2)SO_(4)`
` 25 g CaCO _(3)require (98)/(100)xx25 gm pure H_(2) SO_(4)`
` = 24.5g pure H_(2)SO_(4)`
Hence, wt 50% pure `H_(2)SO_(4)` will be 49.5 gm
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