find the number of O2 atoms present in 49g of H2SO4
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Molecular weight of H2SO4 = 98 g/mol
20 g of H2SO4 = 20 /98 ≈ 0.20 moles
1 mole = 6.023 × 10^23 molecules
0.20 moles =12.046 × 10^22 molecules
One molecule of H2SO4 has 4 oxygen
atoms,
therefore ;
Number of oxygen atom in 0.2 mole = 4
× 12.046 × 10^22
= 48.184 × 10^22 oxygen atoms
Molecular weight of H2SO4 = 98 g/mol
20 g of H2SO4 = 20 /98 ≈ 0.20 moles
1 mole = 6.023 × 10^23 molecules
0.20 moles =12.046 × 10^22 molecules
One molecule of H2SO4 has 4 oxygen
atoms,
therefore ;
Number of oxygen atom in 0.2 mole = 4
× 12.046 × 10^22
= 48.184 × 10^22 oxygen atoms
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