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Number of moles of water in your body

Assume that the human body is 75% water. How many moles of water are in your body? How many molecules? If I am 75% water, then why am I always getting thirsty? My body weight is 165lbs.

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Your body weight = 165lbs = 165 * 0.453 = 74.745 kg

(1 lbs = 0.453 kg)

As you said 75% of this is water. That is, mass of water in your body is = 0.75 * 74.745 = 56.0 kg

We know that the ...

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