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Question about Concentration Units: % Mass, Volume and Other Units

Subject Chemistry

Chemistry

Source Originais Teachy

Originais Teachy

Topic Concentration Units: % Mass, Volume and Other Units

Concentration Units: % Mass, Volume and Other Units

Difficulty Easy

Easy

(Originais Teachy 2023) - Question Easy of Chemistry

Parts per million (ppm) is a concentration unit widely used in Chemistry to express the amount of one substance in relation to another. The term ppm can also be used to express other relationships, such as the total number of particles present in the air or water. Which of the options below can also be measured in ppm?

a.

Molecular mass of oxygen

b.

Amount of sunlight on Earth

c.

Atmospheric pollution

d.

Volume of water in the oceans

e.

Amount of molecules on Earth

Answer sheet:

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