if we combust 4.23 x 10^24 molecules of propane how many grams of carbon dioxide and water you will produce ?

1 answer

This is the usual stoichiometry problem. Follow this example. You will need to convert molecules of propane to moles. moles propane = 4.23E24/6.02E23 = ?
http://www.jiskha.com/science/chemistry/stoichiometry.html