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प्रश्न
The reaction between 15 g of marble and nitric acid is given by the following equation:
\[\ce{CaCO3 + 2HNO3 -> Ca(NO3)2 + H2O + CO2}\]
Calculate the volume of carbon dioxide evolved at S.T.P.
संख्यात्मक
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उत्तर
1 V of CaCO3 produces 1 V of CO2
100 g of CaCO3 has volume = 22.4 litres
So, 15 g will have volume = `(22.4 xx 15)/100` = 3.36 litres
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