Homework Help: chemistry.

Posted by Denmark on Monday, September 28, 2009 at 3:14pm.

Methane, CH4 burns in oxygen gas to form carbon dioxide and water. How many moles of carbon dioxide will be formed from 8.0g of methane?

chemistry. - DrBob222, Monday, September 28, 2009 at 3:24pm
CH4 + 2O2 ==> CO2 + 2H2O
Convert 8.0 g CH4 to moles. moles = grams/molar mass.
8.0/16 = 0.5 mole CH4.
Now look at the equation. The equation tells us that 1 mole CO2 is formed for 1 mole CH4; therefore, 0.5 mole CO2 will be formed by 0.5 mole CH4.

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