Calculate the number of moles present in 45g of water how many molecules of h2o is present in this quantity of water

Calculate the number of moles present in 45g of water how many molecul

1.	Calculate the number of moles present in 45g of water how many molecules of h2o is present in this quantity of water
Answer» No. Of MOLES present in the GIVEN sample =given mass/atomic mass Atomic mass of H2O is 18g Moles present =45/18 =2.5 moles. No. Of H2O molecules present =AVOGADRO NUMBERnumber of moles present =6.02310^232.5 =15.057510^2 Molecules