Answer:
1.115 Kg of HF needed to react with UO₂.
Explanation:
Given data:
Mass of UO₂ = 3.76 Kg (3.76× 1000 = 3760 g)
Mass of HF = ?
Solution:
First of all we will write the balance chemical equation.
UO₂(g) + 4HF(g) → UF₄ (g) + 2H₂O(l)
Now we will calculate the number of moles of UO₂.
Number of moles = mass / molar mass
Molar mass of UO₂ = 270.03 g/mol
Number of moles = 3760 g / 270.03 g/mol = 13.9244 mol
Now we will compare the moles of HF and UO₂ from balance chemical equation.
UO₂ : HF
1 : 4
13.9244 : 4×13.9244 = 55.7 mol
Mass of HF = number of moles × molar mass
Mass of HF = 55.7 mol × 20.01 g/mol
Mass of HF = 1114.56 g
In kilogram:
1114.56 / 1000 = 1.115 Kg
