how many moles of sodium oxide will be produced when 10 moles of sodium react with oxygen

Question

anonymous · Answer

The chemical formula of sodium oxide is: $$Na _{2}O$$Thus, the balanced chemical equation for this reaction would be: $$4Na+O _{2} \rightarrow 2Na _{2}O$$This means that the ratio of moles of Na to moles of sodium oxide is 4:2. Simplify this to get 2:1. If you originally have a certain number of moles of Na, then there will be half as many moles of sodium oxide. Because you had 10 moles of sodium initially, assuming that Oxygen is in excess, 5 moles of sodium oxide will be produced.