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28 January, 19:53

Which solution below yields the lowest final concentration of a sodium hydroxide solution prepared by diluting 50.00 mL of concentrated NaOH (19.3 M) to each of the following volumes?

a. 1.15 L

b. No right answer.

c. 0.80 L

d. 1.33 L

e. 350.0 mL

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Answers (1)
  1. 28 January, 20:01
    0
    The answer to your question is: letter D. 1.33 L

    Explanation:

    Data

    V1 = 50 ml

    C1 = 19.3

    To solve this problem use the formula C₁V₁ = C₂V₂

    C2 = C1V1 / V2

    C = concentration

    V = volume

    a) 1.15 L

    C2 = (19.3) (50) / 1150

    C2 = 0.84 M

    b) No right answer

    c) V2 = 0.80 L

    C2 = (19.3) (50) / 800

    C2 = 1.2 M

    d) V2 = 1.33 L

    C2 = (19.3) (50) / 1330

    C2 = 0.72 M

    e) V2 = 350 ml

    C2 = (19.3) (50) / 350

    C2 = 2.75 M
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