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19 July, 13:29

a 25.0mL sample of ammonium nitrate solution produces a 0.186 M solution when diluted with 50.0mL of water. what is the molarity of the stock solution

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  1. 19 July, 14:10
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    C₁ = 0.558 M

    Explanation:

    Given dа ta:

    Volume of concentrated solution = V₁ = 25 mL

    Molarity of concentrated solution = C₁ = ?

    Volume of diluted solution = V₂ = 50mL + 25 mL = 75 mL

    Molarity of diluted solution = C₂ = 0.186 M

    Solution:

    Formula:

    C₁V₁ = C₂V₂

    Volume of concentrated solution = V₁

    Molarity of concentrated solution = C₁

    Volume of diluted solution = V₂

    Molarity of diluted solution = C₂

    Now we will put the values in formula:

    C₁V₁ = C₂V₂

    C₁ * 25 mL = 0.186 M * 75 mL

    C₁ * 25 mL = 13.95 M. mL

    C₁ = 13.95 M. mL/25 mL

    C₁ = 0.558 M
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