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16.8 g of sodium hydrogen carbonate are ...

16.8 g of sodium hydrogen carbonate are added to 12.0 g of acetic acid .The residue left weighed 20.0 g what is the mass of `CO_(2)` escaped in the reaction ?

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The chemical reaction taking place is :
Sodium hydrogen carbonate + acetic acid rarr sodium acetate + water + carbon dioxide
(16.8 g) (12.0 g) (20.0 g)
Mass of `CO_(2)` released = (16.8 g + 12.0 g) -(20.0 g) =8.8 g
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