In oil and gas industry:
When crude oil get extracted from well, salt water and some other stuff needs to be removed before oil can be sued in the car
5HNO₃ + 3P + 2H₂O = 3H₃PO₄ + 5NO
N⁺⁵ + 3e⁻ = N⁺² 5
P⁰ - 5e⁻ = P⁺⁵ 3
Answer:
The empirical formula of the compound is
.
Explanation:
Mass of magnesium in compound = 0.273 g
Mass of nitrogen in the compound = 0.105 g
Moles of magnesium =
Moles of nitrogen = 
Form empirical formula divides the lowest value of moles of an element present with all the moles of elements present.
Magnesium 
Nitrogen 
The empirical formula of a compound:

The empirical formula of the compound is
.
A thermal insulator because it would keep the heat in