Calculate the number of moles and molecules in 19.6 grams of H2SO4. Also calculate the number of oxygen atoms. 1 mole=6.022*10ˆ23.
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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
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
pjnb542:
It's not 20 grams it's 19.6 grams.
Can you please edit your answer.
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