Question

In the reaction below, what is the limiting reactant when 1.24 moles NH3 reacts with 1.79 moles of NO?4NH3 + 6NO —> 5N2 + 6H2O

Answer 1

Answer: Option A

The balanced reaction :

$4NH_3(g)\text{ + 6NO}(g)\text{ }\Rightarrow5N_2(g)\text{ +6H}_2O(l)\text{ }$

According to stoichiometry, theoritical moles of

NH3 : NO is

4 : 6

= 2 : 3

Experimental moles of

NH3 : NO is

1.24 : 1.79

Since NO is in excess , NH3 is the limiting reactant .