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13 July, 07:06

If HCl is a 0.05 M solution and 50 mL is used to titrate the NaOH, what is the molarity of NaOH if the flask contains 100 mL?

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  1. 13 July, 11:05
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    Molarity of NaOH = 0.025 M

    Explanation:

    Given dа ta:

    Molarity of HCl = C₁ = 0.05 M

    Volume of HCl = V₁ = 50 mL

    Molarity of NaOH = C₂=?

    Volume of NaOH = V₂ = 100 mL

    Solution:

    Formula:

    C₁V₁ = C₂V₂

    C₁ = Molarity of HCl

    V₁ = Volume of HCl

    C₂ = Molarity of NaOH

    V₂ = Volume of NaOH

    Now we will put the values:

    C₁V₁ = C₂V₂

    0.05 M * 50 mL = C₂ * 100 mL

    2.5 M. mL = C₂ * 100 mL

    C₂ = 2.5 M. mL / 100 mL

    C₂ = 0.025 M
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