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2 years ago

How many moles of O2 are consumed when 2.10 mol of magnesium burns?

Chemistry

1 answer:

katrin [286]2 years ago

6 0

1.05 moles of oxygen gas are consumed in the reaction when 2.10 mol of magnesium burns.

<h3>What are moles?</h3>

A mole is defined as $6.02214076 × 10^{23}$ of some chemical unit, be it atoms, molecules, ions, or others. The mole is a convenient unit to use because of the great number of atoms, molecules, or others in any substance.

We are given:

Moles of magnesium = 2.10 mol

For the given chemical reaction:

2Mg + O₂ → 2MgO.

By Stoichiometry of the reaction:

2 moles of magnesium react with 1 mole of oxygen gas.

So, 2.10 moles of magnesium will react with = $\frac{1}{2}$ X2.10 =1.05 moles

Hence, 1.05 moles of oxygen gas are consumed in the reaction.

Learn more about moles here:

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