The mass of 0.82 mol of a diatomic molecule is 131.3g. Identify the molecule.

Name: The mass of 0.82 mol of a diatomic molecule is 131.3g. Identify the molecule.
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Question

Quizplus · Accepted Answer

The molar mass of the molecule can be calculated by dividing the given mass by the number of moles: 
131.3 g / 0.82 mol = 160.4 g/mol

The only diatomic molecule with a molar mass close to 160.4 g/mol is bromine (Br2), which has a molar mass of 159.8 g/mol. Thus, the answer is E, Br2.

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