How manymoles CO_(2) will be produced on theremal decomposition of 25 gram ? CaCO_(3) ? [C=12, O=16, Ca=40]

How manymoles CO_(2) will be produced on theremal decomposition of 25

1.	How manymoles CO_(2) will be produced on theremal decomposition of 25 gram ? CaCO_(3) ? [C=12, O=16, Ca=40]
Answer» 1 2 1.5 0.25 Solution :Molecular mass of `CaCO_(3) = 40 + 12 + 3(16)` `= 100 g "MOL"^(-1)` `"Mole" = ("Mass of compound in gram")/("Molecular mass of the compound in g mol"^(-1))` `= (25 "gram")/(100 "g. mol"^(-1)) = 0.25` mole of `CaCO_(3)` Equation of thermal decomposition of `CaCO_(3)` `CaCO_(3(s)) rarr CaO_((s)) + CO_(2(g))` According to STOICHIOMETRY of the balanced reaction : 1 mole `CaCO_(3(S))` produces 1 mole `CO_(2)` GAS `:. 025` mole `CaCO_(3(S))` produces 0.25 mole `CO_(2)` gas