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Uses of Calcium Carbonate

x g of KClO...

Question

$x$ g of $K C l O_{3}$ will produce $100$ litres of $O_{2}$ at NTP. The value of $x$ is (only integer value) :

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Solution

The balanced reaction is as follows:
$2 K C l O_{3} \to 2 K C l + 3 O_{2}$
$122.5 \times 2$ $3 \times 22.4$
$364.5$ g will produce $= 3 \times 22.4 \times \frac{364.5}{2} \times 122.5 = 100$ L
So, the integer value is $364$ .

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