\(N_2+3H_2→2NH_3\)

(The atomic mass of nitrogen is \(14\), and that of hydrogen is \(1\))

\(1\) mole of nitrogen (_______g) +

\(3\) moles of hydrogen ( _________ g) →

\(2\) moles of ammonia ( _________ g)
  
The formula to find mass of an element from mole is,
 
\(\text{Mass of element}\) \(=\)\(\ (\text {X} )\ \cdot\ (\text {Atomic mass of the element} )\)
 
Where,
 
X is
 
Y is
 
Therefore,
 
\(1\) \(mole\) of nitrogen (\(N_2\)):
 
\(1\) \(mole\) of nitrogen (\(N_2\)) \(=\)
 
\(3\) \(moles\) of hydrogen (\(H_2\)):
 
\(3\) \(moles\) of hydrogen (\(H_2\)) \(=\)
 
\(2\) \(moles\) of ammonia (\(NH_3\)):
 
\(2\) \(moles\) of ammonia (\(NH_3\)) \(=\)