How many grams of oxygen are present in 76.8g of co2

Explanation:

According to the mole concept there are present in 1 mole of a substance.

Mathematically,    1 mole = atoms or molecules

Therefore, number of moles present in 76.8 g of are as follows.

               No. of moles =

                                      =

                                      = 1.74 mol

As there are two atoms of oxygen are present in a molecule of . Hence, calculate the number of oxygen atoms present in 1.74 mol of as follows.

                 = atoms

Thus, we can conclude that there are atoms of oxygen are present in 76.8g of .

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