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26 July, 14:19

How many kilograms of HF are needed to react with 3.76kg of UO2

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  1. 26 July, 14:35
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    1.115 Kg of HF needed to react with UO₂.

    Explanation:

    Given dа ta:

    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
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