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1 mole of water (H₂O) = 18 gms
Given mass of water = 36g
Therefore , No.of moles = 36/18 = 2 moles.
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No. of moles= mass of water/molecular mass of water
molecular mass of water=H2O=(1)2+16=2+16=18
no.of moles=36/18=2
therefore two moles of water are present in 36g of water
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