Answer:
A Semipermeable membrane is a type of biological or synthetic, polymeric membrane that will allow certain molecules or ions to pass through it by diffusion or occasionally by more specialized processes of facilitated diffusion, passive transport or active transport.
Generally, 60% of the mass of body is water.
So, amount of water in 100 kg person is:

In order to calculate the mass of a person if all the water were removed, then:

Mass of the body =
[
Mass of the content of water in the body = 
Substituting the values:
Mass of a person if all the water were removed =
.
Hence the mass of a person who weighs
will weigh
if all the water were removed from the body.
The given condition is STP, under this condition, gas has a rule of 22.4 L per mole. And the given equation is already balanced. The ratio of mole number is the same as the ratio of the volume and is also the same as the ratio of coefficients. So the answer is 4.0 liters.
<span>The compound may have properties that are very different from those of the elements it is composed from.</span>