Question

4. Balance the following equation. Then determine the number of mols of Nitrogen formed given the values in a,b and c.

NH3 + O2 → N2 + H2O
a. 4 mol NH3

b. 4 mol N2

c. 4.5 mol O2

Answer 1

4NH3 + 3O2 → 2N2 + 6H2O

a. 2 moles

b. 4 moles

c. 3 moles

Step-by-step explanation:

a. 4 mol NH3

4NH3 + 3O2 → 2N2 + 6H2O

4 : 3 : 2 : 6

4 (mol)

⇒
`n_(N2)` = 4 × 2 ÷ 4 = 2

b. 4 mol N2

c. 4.5 mol O2

4NH3 + 3O2 → 2N2 + 6H2O

4 : 3 : 2 : 6

4.5 (mol)

⇒
`n_(N2)` = 4.5 × 2 ÷ 3 = 3