# How many moles of sodium oxide will be produced when 10 moles of sodium react with oxygen?

May 16, 2018

$5$ moles of sodium oxide

#### Explanation:

The reaction is:

$2 N a \left(s\right) + {O}_{2} \left(g\right) \to N {a}_{2} O \left(s\right)$

So, the mole ratio between sodium and sodium oxide is $2 : 1 = 2$.

Therefore, if ten moles of sodium are used, then we produce:

10color(red)cancelcolor(black)("mol" \ Na)*(1 \ "mol" \ Na_2O)/(2color(red)cancelcolor(black)("mol" \ Na))=5 \ "mol" \ Na_2O