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25 May, 17:31

2. How many moles of fluorine are required to produce 12.0 grams of

KrFo? Given the equation: Kr + 3 F2 → KrF

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Answers (1)
  1. 25 May, 19:24
    0
    0.0984mol of F2

    Explanation:

    The equation for the reaction is given below:

    Kr + F2 → KrF2

    Let us convert 12g of KrF2 to mole. This is illustrated below

    Molar Mass of KrF2 = 84 + (2x19) = 84 + 38 = 122g/mol

    Mass of KrF2 = 12g

    Number of mole = Mass / Molar Mass

    Number of mole of KrF2 = 12/122 = 0.0984mol

    From the equation,

    1mole of F2 produced 1mole of KrF2.

    Therefore 0.0984mol of F2 will produce 0.0984mol of KrF2
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