A chemistry student needs 30.0 g of acetic acid for an experiment. He has available 1.2 kg of a 7.58% w/w solution of acetic acid in acetone

Question

A chemistry student needs 30.0 g of acetic acid for an experiment. He has available 1.2 kg of a 7.58% w/w solution of acetic acid in acetone.
Calculate the mass of solution the student should use. If there’s not enough solution, press the “No solution” button.
Round your answer to 3 significant digits.

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Farah 4 years 2021-07-30T10:20:03+00:00 1 Answers 138 views 0

Answers ( )

  1. Adela
    0
    2021-07-30T10:21:26+00:00
    Reply

    Answer:

    The mass of solution will be “395.78 g“.

    Explanation:

    Given:

    Mass of acetic acid,

    = 30 g

    Percentage,

    = 7.58% w/w

    Now,

    ⇒ % =\frac{Mass \ of \ acetic \ acid}{Mass \ of \ solution}\times 100

    By putting the values, we get

    ⇒ 7.58=\frac{30}{Mass \ of \ solution}\times 100

    ⇒ Mass \ of \ solution=\frac{30\times 100}{7.58}

    ⇒                               =\frac{3000}{7.58}

    ⇒                               =395.78 \ g

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