number of oxygen atoms present in 90 gms of water ..pls answer this questionn
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1 molecule of H2O has 1 atom of oxygen.
Firstly we will calculate the number of atoms in 90g of H2O.
Step I:-
No.of moles of H2O=
given mass/molar mass
No. of moles = 90/18 = 5 moles
No. Of molecules =
No. of moles x avogadro number
=5 x 6.022x10^23
Step II :-
No. of oxygen atoms = number of H2O molecules
= 30.11 x 10^23
HOPE IT'S HELP YOU
1 molecule of H2O has 1 atom of oxygen.
Firstly we will calculate the number of atoms in 90g of H2O.
Step I:-
No.of moles of H2O=
given mass/molar mass
No. of moles = 90/18 = 5 moles
No. Of molecules =
No. of moles x avogadro number
=5 x 6.022x10^23
Step II :-
No. of oxygen atoms = number of H2O molecules
= 30.11 x 10^23
HOPE IT'S HELP YOU
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tq
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