Concept explainers
(a)
Interpretation:
If
Concept Introduction:
Density is a physical property and specific for each substance under fixed conditions. It is defined as the ratio of mass of a substance to the volume of the substance. If the answer obtained using the above density formula has to be expressed as a scientific notation, the operational rule can be applied here, which states that the number of significant figures in the answer after solving a multiplication or division problem is same as the number of fewest significant figures present in the measurement.
(a)
Answer to Problem 2.99EP
The density is
Explanation of Solution
Density can be calculated using the below formula.
Since the significant figures for mass and volume are two, the fewest significant figure here is two, hence the answer obtained too has a significant figure of two.
The density is
(b)
Interpretation:
If
Concept Introduction:
Density is a physical property and specific for each substance under fixed conditions. It is defined as the ratio of mass of a substance to the volume of the substance. If the answer obtained using the above density formula has to be expressed as a scientific notation, the operational rule can be applied here, which states that the number of significant figures in the answer after solving a multiplication or division problem is same as the number of fewest significant figures present in the measurement.
(b)
Answer to Problem 2.99EP
The density is
Explanation of Solution
Density can be calculated using the below formula.
Since the significant figures for mass and volume are four and three respectively, the fewest significant figures here is three, hence the answer obtained too has a significant figure of three.
The density is
(c)
Interpretation:
If
Concept Introduction:
Density is a physical property and specific for each substance under fixed conditions. It is defined as the ratio of mass of a substance to the volume of the substance. If the answer obtained using the above density formula has to be expressed as a scientific notation, the operational rule can be applied here, which states that the number of significant figures in the answer after solving a multiplication or division problem is same as the number of fewest significant figures present in the measurement.
(c)
Answer to Problem 2.99EP
The density is
Explanation of Solution
Density can be calculated using the below formula.
Since the significant figures for mass and volume are five, the fewest significant figure here is five, hence the answer obtained too has a significant figure of five.
The density is
(d)
Interpretation:
If
Concept Introduction:
Density is a physical property and specific for each substance under fixed conditions. It is defined as the ratio of mass of a substance to the volume of the substance. If the answer obtained using the above density formula has to be expressed as a scientific notation, the operational rule can be applied here, which states that the number of significant figures in the answer after solving a multiplication or division problem is same as the number of fewest significant figures present in the measurement.
(d)
Answer to Problem 2.99EP
The density is
Explanation of Solution
Density can be calculated using the below formula.
Since the significant figures for mass and volume are four and five respectively, the fewest significant figures here is four, hence the answer obtained too has a significant figure of four.
The density is
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Chapter 2 Solutions
General, Organic, and Biological Chemistry Seventh Edition
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