
Concept explainers
(a)
Interpretation:
To write the equality and two conversion factors for one litre is 1.057 qt pair and also identify the number of significant figures for this.
Concept Introduction:
The Exact numbers are those that have defined values or are integers. For each of the number we can check the exact value and significant figure. The conversion factor is always written as fraction in which one unit will come as numerator and other as denominator. The equality indicates the direct relation between two units.
(b)
Interpretation:
To write the equality and two conversion factors for oranges are $1.29 per lb pair and also identify the number of significant figures for this.
Concept Introduction:
The Exact numbers are those that have defined values or are integers. For each of the number we can check the exact value and significant figure. The conversion factor is always written as fraction in which one unit will come as numerator and other as denominator. The equality indicates the direct relation between two units.
(c)
Interpretation:
To write the equality and two conversion factors for there are 7 days in 1 week pair and also identify the number of significant figures for each one of this.
Concept Introduction:
The Exact numbers are those that have defined values or are integers. For each of the number we can check the exact value and significant figure. The conversion factor is always written as fraction in which one unit will come as numerator and other as denominator. The equality indicates the direct relation between two units.
(d)
Interpretation:
We have to write the equality and two conversion factors for one decilitre contains 100 mL pair and also identify the number of significant figures for each one of this.
Concept Introduction:
The Exact numbers are those that have defined values or are integers. For each of the number we can check the exact value and significant figure. The conversion factor is always written as fraction in which one unit will come as numerator and other as denominator. The equality indicates the direct relation between two units.
(e)
Interpretation:
To write the equality and two conversion factors for an 18-carat gold ring contains 75 % gold by mass pair and also identify the number of significant figures for each one of this.
Concept Introduction:
The Exact numbers are those that have defined values or are integers. For each of the number we can check the exact value and significant figure. The conversion factor is always written as fraction in which one unit will come as numerator and other as denominator. The equality indicates the direct relation between two units.

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Chapter 2 Solutions
Basic Chemistry (5th Edition)
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