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A chemist measures the amount of oxygen gas produced during an experiment. He finds that 11.5 g of oxygen gas is produced. Calculate the number of moles of oxygen gas produced.

Answer :

IthaloAbreu

Answer:

0.359 moles.

Explanation:

The oxygen gas has a molecular formula O2. In table periodic, the molar mass of one atom of oxygen is 16 g/mol, so the molar mass of O is 32 g/mol.

Molar mass, mass and number of moles are related by the equation below:

[tex]n = \frac{m}{MM}[/tex]

Where n is the number of moles, m is the mass, and MM is the molar mass of the compound.

So, for 11.5 g of O2 produced:

[tex]n = \frac{11.5}{32}[/tex]

n = 0.359 moles

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