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The number of moles of methane required to produce 11g CO2(g) after complete combustion is: (Given molar mass of methane is g mol-1 = 16)

1. 0.75
2. 0.25
3. 0.35
4. 0.5

Correct answer: 0.25

Solution

To find the number of moles of methane needed to produce 11g of CO2, we first calculate the moles of CO2 using its molar mass (44 g/mol). This gives us 0.25 moles of CO2, and since the combustion of one mole of methane produces one mole of CO2, we need 0.25 moles of methane.

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