(a)
Interpretation: To determine the no. of significant digits in the given number.
Concept introduction:
The number of digits that contributes to the degree of accuracy of the measurement is known as significant figures. It shows the precision of the measurement.
(a)
Answer to Problem 88A
3
Explanation of Solution
All non-zero digits in any number are considered significant digits.
The given number is
Thus, the number of significant digits is 3.
(b)
Interpretation: To identify the uncertain digit in the given number.
Concept introduction:
The number of digits that contributes to the degree of accuracy of the measurement is known as significant figures. It shows the precision of the measurement.
(b)
Answer to Problem 88A
8
Explanation of Solution
An estimate or guess of the object's location between the closest graduations is an "uncertain digit." As a result, in a measurement that is accurately reported, the last digit is important but uncertain. The given number is
Thus, uncertainty lies in the last digit 8.
Chapter 6 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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