Calculate the mass of the amount of methane (solute) in a 65 kg person, if the concentration is 4 ppm?

The mass of methane found in the person is 0.26 g

Explanation:

ppm is the amount of solute (in milligrams) present in kilogram of a solvent. It is also known as parts-per million.

To calculate the ppm of oxygen in sea water, we use the equation:

Both the masses are in grams.

We are given:

Concentration of methane = 4 ppm

Mass of person = 65 kg = 65000 g  (Conversion factor:  1 kg = 1000 g)

Putting values in above equation, we get:

Hence, the mass of methane found in the person is 0.26 g

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be