calculate the mass of 2.5g atom of oxygen, 1.2g of atom of magnesium and 1.6g of atom of alluminium?
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Explanation:
We know that,
No. of gram atoms =Mass of the element in grams/Atomic mass of the element in grams
So, mass of oxygen =2.5×32=80.0g
similarly
No. of gram atoms =Mass of the element in grams/Atomic mass of the element in grams
mass of magnesium = 1.2 × 24 = 28.8
No. of gram atoms =Mass of the element in grams/Atomic mass of the element in grams
mass of aluminium = 1.6 × 26 = 41.6
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