1
Question
Calculate the number of moles of H2 molecule present in 72 gms of water.
Calculate the number of moles of H2 molecule present in 72 gms of water.
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Solution
The correct option is D 4
Number of moles of water = 72/18 = 4 moles
In 1 molecule of water, we have 1 molecule of H2
So in 1 mole we will have 1 mole of hydrogen molecule.
So in 72 grams, that is, 4 moles of water we have 4 moles of H2 molecule.
4
Number of moles of water = 72/18 = 4 moles
In 1 molecule of water, we have 1 molecule of H2
So in 1 mole we will have 1 mole of hydrogen molecule.
So in 72 grams, that is, 4 moles of water we have 4 moles of H2 molecule.
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