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11 January, 09:05

35.5 moles of lithium fluoride is dissolved in 65 L of solution

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Answers (1)
  1. 11 January, 09:31
    0
    L

    =

    1.10

    L

    of solution

    Explanation:

    The Molarity

    M

    is calculated by the equation comparing moles of solute to liters of solution

    M

    =

    m

    o

    l

    L

    For this question we are given the Molarity 0.88M

    We are told the solute is a 25.2 gram sample of LiF, Lithium Fluoride

    We can convert the mass of LiF to moles by dividing by the molar mass of LiF

    Li = 6.94

    F = 19.0

    LiF = 25.94 g/mole

    25.2

    g

    r

    a

    m

    s

    x

    1

    m

    o

    l

    25.94

    g

    r

    a

    m

    s

    =

    0.97

    moles

    Now we can take the the molarity and the moles and calculate the Liters of solution

    M

    =

    m

    o

    l

    L

    M

    L

    =

    m

    o

    l

    L

    =

    m

    o

    l

    M

    L

    =

    0.97

    m

    o

    l

    0.88

    M

    L

    =

    1.10

    L

    of solution i just did look at my papaer
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