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Answer:
10.76 grams
Explanation:
Given that the amount of is 25.0 grams.
Mass of 1 mole of = 158 grams
The number of atoms in 1 mole of is 4.
Mass of oxygen in 1 mole of = 16\times 4 = 68 grams.
Here, 158 grams of has 68 grams of oxygen
So, the amount of oxygen in 1 gram of = 68/158 grams
Therefore, the amount of oxygen in 1 gram of =
grams
=10.76 grams
Hence, 25 grams of has 10.76 grams of oxygen.
Hope it helped you.
