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13 July, 18:18

The molecular mass of air, at standard pressure and temperature, is approximately 28.97 g/mol. Calculate the mass of 3.33 moles of air. Next, cancel like terms and units. Which of the following shows the correct terms and units canceled?

A>N>S: 2nd choice

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Answers (2)
  1. 13 July, 18:41
    0
    second one
  2. 13 July, 21:27
    0
    Mass = 96.5 g

    Explanation:

    Given dа ta:

    Molar mass of air = 28.97 g/mol

    Moles of air = 3.33 mol

    Mass of air = ?

    Solution:

    Number of moles = mass / molar mass

    Mass = Number of moles * molar mass

    Mass = 3.33 mol * 28.97 g/mol

    Mass = 96.5 g
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