
Concept explainers
(a)
Interpretation:
The volume of air in liters that might inhale while sleeping for 7.5 hours has to be calculated.
Concept Introduction:
Volume is the amount of space occupied by the matter.
The unit of volume is expressed in milliliters
(a)

Explanation of Solution
Assume each breath has a volume of about
The volume of air in liters can be calculated as:
The volume of air in liters that might inhale while sleeping for 7.5 hours is
Therefore, breathing is exposed to a large volume of air.
(b)
Interpretation:
Five things that improve the quality of air have to be given.
Concept Introduction:
Quality of air refers to a condition in which air in the surrounding. Good air quality refers to the condition of air with less pollution, clear air and free from smog.
(b)

Explanation of Solution
Quality of air refers to a condition in which air in the surrounding. Good air quality refers to the condition of air with less pollution, clear air and free from smog.
Five things that improve the quality of air is,
- • Burning of wood, vegetation, fuels etc should be reduced.
- • Low emission paints which pollute less have to be used.
- • Vehicles with good silencer have to be used.
- • Residential areas can improve the air quality by regular cleaning of carpets etc.
- • Proper treatment before the emission of gases from the industries.
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Chapter 1 Solutions
Laboratory Manual Chemistry in Context
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