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11 October, 03:12

Acetic acid (CH3COOH) has a heat of vaporization of 23.4 kJ/mol. What heat is required to vaporize 250 g of acetic acid?

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  1. 11 October, 03:42
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    97.5 kJ of heat is required to vaporize 250 g of acetic acid

    Explanation:

    Acetic acid → CH₃COOH

    The heat of vaporization is 23.4 kJ/mol, which it means that 1 mol of acetic releases 23.4 kJ of energy.

    Let's convert our mass of acetic to moles:

    250 g. 1 mol / 60 g = 4.17 moles

    Now we propose this rule of three:

    1 mol of acetic acid releases 23.4 kJ

    Then, 4.17 moles will release (4.17. 23.4) / 1 = 97.5 kJ
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