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14 April, 22:00

a student is asked to prepare 75.0 ml of a 130M solution of HF using a 2.000M standard solution. Calculate the volume in mL of 2.000M HF the student needs to use

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  1. 14 April, 22:45
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    Volume required from standard solution = 4675 mL

    Explanation:

    Given dа ta:

    Final volume = 75.0 mL

    Final molarity = 130 M

    Molarity of standard solution = 2.000 M

    Volume required from standard solution = ?

    Solution:

    We use the formula,

    C₁V₁ = C₂V₂

    here,

    C₁ = Molarity of standard solution

    V₁ = Volume required from standard solution

    C₂ = Final molarity

    V₂ = Final volume

    Now we will put the values in formula,

    C₁V₁ = C₂V₂

    2.000 M * V₁ = 130 M * 75.0 mL

    V₁ = 9750 M. mL / 2.000 M

    V₁ = 4675 mL
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