Question

how many gram
of co2 evolved 16g of methane is burned?​

Answer 1

Answer:

and since only one mole of CO2 is formed per mole of fuel burned, burning methane will release 810 kJ/mole of CO2 released. The molar mass of methane is 16 g/mole, so burning methane will release (810 kJ/mole) / (16g/mole) = about 51 kJ/g fuel burned.

Answer 2

How do I calculate the amount of water produced by the combustion of 16 g of methane?

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To solve such questions you must write a balanced reaction first.

CH4 (g)+2O2 (g)————-> CO2 (g) +2H2O (g)

Now according to the reaction 1 mole of CH4 gives 2 moles of H2O

And 16 grams of Methane mean 1 mole (moles=given mass/molecular mass. Molecular mass of methane is 16)

so 1 mole of methane = 16/16 (given mass 16 and molecular mass 16)

since 1 mole of methane is getting used up to form 2 mole of water.

number of moles=given mass/molecular mass ——- eq. 1

molecular mass of water is 18.

2=x/18 ( where x is the mass of water produced , using equation 1)

2*18=36grams

so 36 grams of water will be produced.

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