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How many numbers of molecules of water are present in 36 gram of water?

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The total number of molecules in 36 gram of water is 12.044 x 1023.


No. of moles of water = Given mass / molar mass of water = 36/18 = 2

No. of molecules = No. of moles x Avogadro number = 2 x 6.022 x 1023 
= 12.044 x 1023 molecules

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