Propane, #C_3H_8#, reacts with oxygen to produce carbon dioxide and water. If 10.0 grams of oxygen reacts with an excess of propane, then how many moles of carbon dioxide were produced?
The reaction will form
Given: Mass of
Find: Moles of
The central part of any stoichiometry problem is to convert moles of something to moles of something else.
(a) We start with the balanced chemical equation for the reaction.
(b) We can use the molar ratio from the equation to convert moles of
(c) Then we can use the molar mass to convert the mass of
Our complete strategy is:
(a) The balanced equation is
(b) Calculate moles of
(c) Calculate moles of
The molar ratio of
(3 significant figures)
Answer: The reaction will form