
Concept explainers
Interpretation: From the given definition the significant figures to be calculated.
Concept introduction: Scientific notation is quantitative information is called a measurement and exists of a number and a unit. By using scientific notation too large or too small numbers are conveniently expressed.

Answer to Problem 35A
Number significant figures not limited by neither 1 nor 5280.
Explanation of Solution
Significant figures are first uncertain number plus all certain numbers.
Given 1mi=5280ft. The number 1 in 1 mi is an exact number. Exact numbers are derived from counting. In the calculation exact are not limits significant. From the given relation neither 1 nor 5280 limits significant figures in calculation. For example,
Number significant figures not limited by neither 1 nor 5280 for above calculation.
Inherent uncertainty of the measuring device determines number of significant figures for a given measurement.
Chapter 5 Solutions
World of Chemistry
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