Concept explainers
(a)
Interpretation:
A volumetric flask contains
Concept Introduction:
Physical properties:
The properties which are measured or observed without change in composition of matter are said to be physical properties. These includes appearance, texture, color, odor, melting point, boiling point, density, solubility, polarity and so on.
Chemical properties:
The properties that are observed when a substance undergoes any
(a)
Explanation of Solution
The physical property of water is said to be that water is colorless liquid.
The chemical property of water is the reactivity of water with substances.
(b)
Interpretation:
The properties that are given in part (a) has to be labelled as intensive or extensive properties.
Concept Introduction:
Extensive property:
The property which depends on the amount of the matter is said to be an extensive property. The change in the volume or mass of the matter changes the extensive properties.
Intensive property:
The property which does not depends on the amount of matter is said to be an intensive property. The change in the volume or mass of the matter does not affect intensive properties.
(b)
Explanation of Solution
The physical property of water that is colorless liquid is an intensive property. It does not depend on the mass or volume of the water taken.
The reactivity of water with other substances is said to be extensive property. It depends on the volume of water taken.
(c)
Interpretation:
A volumetric flask contains
Concept Introduction:
Density:
The ratio of mass of a sample to its volume is said to be the density.
(c)
Explanation of Solution
Given, volume of water is
The mass of the water is calculated as
(d)
Interpretation:
The mass of water calculated in part (c) has to be converted into ounces.
Concept Introduction:
The mass can be converted from grams into ounces by the conversion factor.
(d)
Explanation of Solution
The mass of the water is calculated as
It can be converted into ounces as follows:
(e)
Interpretation:
The mass of water calculated in part (c) has to be converted into pounds.
Concept Introduction:
The mass can be converted from grams into pounds by the conversion factor.
(e)
Explanation of Solution
The mass of the water is calculated as
It can be converted into pounds as follows:
(f)
Interpretation:
Among the units that are calculated in part (d) and part (e), the appropriate units have to be given.
(f)
Explanation of Solution
The appropriate units for the mass is pounds.
The metric unit for mass is grams. The grams can be directly converted into pounds which is the unit of English system. To convert grams into ounce, it has to be converted to pounds. So, pounds are the appropriate units.
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