How many litres of $C O_{2}$ at STP will be formed when $100 m l$ of $0.1 M$ $H_{2} S O_{4}$ reacts with excess of $N a_{2} C O_{3}$ ?

22.4

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2.24

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0.224

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5.6

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Solution

The correct option is C $0.224$
$N a_{2} C O_{3} + H_{2} S O_{4} \to N a_{2} S O_{4} + H_{2} O + C O_{2}$ .
1 mole of sulfuric acid will produce 1 mole (22.4 L at STP) of carbon dioxide.
100 ml (0.1 L) of 0.1 M $H_{2} S O_{4}$ corresponds to $(0.1 \times 0.1)$ 0.01 moles.
Thus, 0.01 mole of sulfuric acid will produce 0.01 mole (0.224 L at STP) of carbon dioxide.

Hence, the correct option is $C$ .

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