Answer:
Well, 60% of 70kg is 42L (as water has a specific gravity of 1.000, though the density does change minutely with variations in temperature and pressure). For the purposes of this exercise though, we'll assume that 1 L of water = 1kg.
A mole is a unit of measuring the quantity of anything. A single mole is set to the number of particles found in 12 grams of carbon-12. This number is 6.022 x 10 to the 23rd power carbon atoms.
A mole of water has 6.022 x 10 to the 23rd power water molecules.
A water molecule is made up of one hydrogen atom and two oxygen atoms.
A mole of water therefore contains one mole of oxygen atoms and one mole of hydrogen atoms.
The atomic weight of hydrogen is 1.0079, and for oxygen 15.9994.
2(1.0079) + 15.9994 = 18.0152
One mole of water is 18.0152 grams.
1000/18.0152 = 55.5086815578
There are 55.51 (rounded) moles in 1 litre of water.
42 x 55.51 = 2331.3646254274 moles of water in a 70 kg person.
Step-by-step explanation: