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

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.

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