The molar mass of o2 is 32.0 g/mol. what mass, in grams, of o2 is required to reach completely with 4.00 mol of mg

Answer : The mass of required is 256 grams.

Explanation :

The balanced chemical reaction will be:

First we have to calculate the moles of .

From the balanced reaction we conclude that,

As, 2 moles of Mg react with 1 mole of

So, 4.00 moles of Mg react with mole of

Now we have to calculate the mass of .

Molar mass of = 32.0 g/mole

Therefore, the mass of required is 256 grams.

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