24 cc Marsh gas (CH₄) was mixed with 106 cc oxygen and then exploded. On cooling, the volume of the mixture became 82 cc, of which, 58 cc was unchanged oxygen. Which law does this experiment support? Explain with calculations.
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Question

24 cc Marsh gas (CH₄) was mixed with 106 cc oxygen and then exploded. On cooling, the volume of the mixture became 82 cc, of which, 58 cc was unchanged oxygen. Which law does this experiment support? Explain with calculations.

Mole Concept

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KnowledgeBoat · Accepted Answer

This experiment supports Gay-Lussac's law of combining volumes. Since the unchanged oxygen is 58 cc so, used oxygen 106 - 58 = 48cc According to Gay-Lussac's law, the volumes of gases reacting should be in a simple ratio. Hence, methane and oxygen are in the ratio 1:2 .

Chemistry

24 cc Marsh gas (CH₄) was mixed with 106 cc oxygen and then exploded. On cooling, the volume of the mixture became 82 cc, of which, 58 cc was unchanged oxygen. Which law does this experiment support? Explain with calculations.

Mole Concept

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24 cc Marsh gas (CH4) was mixed with 106 cc oxygen and then exploded. On cooling, the volume of the mixture became 82 cc, of which, 58 cc was unchanged oxygen. Which law does this experiment support? Explain with calculations.

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24 cc Marsh gas (CH₄) was mixed with 106 cc oxygen and then exploded. On cooling, the volume of the mixture became 82 cc, of which, 58 cc was unchanged oxygen. Which law does this experiment support? Explain with calculations.

Calculate the volume of oxygen at STP required for the complete combustion of 100 litres of carbon monoxide at the same temperature and pressure.
2CO + O₂ ⟶ 2CO₂

200 cm³ of hydrogen and 150 cm³ of oxygen are mixed and ignited, as per the following reaction,
2H₂ + O₂ ⟶ 2H₂O
What volume of oxygen remains unreacted?

What volume of oxygen would be required to burn completely 400 mL of acetylene [C₂H₂]? Also, calculate the volume of carbon dioxide formed.
2C₂H₂ + 5O₂ ⟶ 4CO₂ + 2H₂O (l)

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(i) the volume of gaseous product formed
(ii) composition of the resulting mixture