Question

For the reaction `CH_4 + 2O_2 -> CO_2 + H_2O`, how many moles of carbon dioxide are produced from the combustion of 100. g of methane?

Answer 1

1 mol of methane is 16 grams that produces 6.25 moles of `CO_2` when it is burnt

Explanation:

1 mol of methane is 16 grams. Therefore, if you have 100 grams of methane, it means that you have `100/16=6.25` moles of methane.

When you burn 6.25 moles of methane, you produce 6.25 moles of carbondioxide.

Your reaction is wrong though. I want to correct it.

`CH_4 + 2O_2 -> CO_2 + 2H_2O`

When you burn 6.25 moles of methane, you need 12.5 moles of oxygen gas.

When you burn 6.25 moles of methane, you produce 6.25 moles of carbondioxide (275 grams of `CO_2`) and 12.5 moles of water vapour (225 grams of `H_2O`).