Assume that human body is 80% water. Calculate the number of molecules ofwater that are present in the body of a person whose weight is 65 kg.

Assume that human body is 80% water. Calculate the number of molecules ofwater that are present in the body of a person whose weight is 65 kg.

Ans: – The mass of water is (80/100×65) =52kg.

So, the no of molecules of present in human body is = (52/18 × 6.023×10^23) = 1.73×10^22.

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