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11 April, 09:52

What's the mass of 0.75 moles of CO2? (Show the equation and your working)

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  1. 11 April, 13:35
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    Answer: 33 grams

    Explanation:

    CO2 is the chemical formula of carbon dioxide.

    Given that:

    Amount of moles of CO2 (n) = 0.75

    Mass of CO2 in grams = ?

    Obtain molar mass of CO2 using the atomic masses of the individual elements

    Carbon = 12g; O = 16g

    CO2 = [12g + (16g x 2)

    = 12g + 32g

    = 44 g/mol

    Since, n = mass in grams / molar mass

    0.75 moles = mass in grams / 44g/mol

    mass in grams = 0.75 moles x 44g/mol

    mass in grams = 33

    Thus, the mass of 0.75 moles of CO2 is 33 grams
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