ICSE Class 10 Chemistry 2013 Solved Paper

${\O}_2$ is evolved by heating ${\KClO}_3$ using ${\MnO}_2$ as a catalyst

2 {\KClO}_3 \ {─────▸}↖{ {\MnO}_2} 2 {\KCl}+3 {\O}_2

Question : 79 of 84

Marks: +1, -0

Calculate the volume occupied by 0.01 mole of

{\CO}_2

at STP.

Solution:

∵ 1

mole of

{\CO}_2

occupied at STP

=22.4 l

∴ 0.01

mole of

{\CO}_2

occupied at STP

\;=22.4 × 0.01

\;=0.224 l

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