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(a)
Interpretation:
The given number is to be rounded off to three significant digits.
Concept introduction:
A value can be rounded off up to some significant digits. When the first non-significant digit is less than five, then all significant digits are eliminated. When the first non-significant digit is greater than or equal to five, then one is added to the last significant digit and all significant digits are eliminated.
(b)
Interpretation:
The given number is to be rounded off to three significant digits.
Concept introduction:
A value can be rounded off up to some significant digits. When the first non-significant digit is less than five, then all significant digits are eliminated. When the first non-significant digit is greater than or equal to five, then one is added to the last significant digit and all significant digits are eliminated.
(c)
Interpretation:
The given number is to be rounded off to three significant digits.
Concept introduction:
A value can be rounded off up to some significant digits. When the first non-significant digit is less than five, then all significant digits are eliminated. When the first non-significant digit is greater than or equal to five, then one is added to the last significant digit and all significant digits are eliminated.
(d)
Interpretation:
The given number is to be rounded off to three significant digits.
Concept introduction:
A value can be rounded off up to some significant digits. When the first non-significant digit is less than five, then all significant digits are eliminated. When the first non-significant digit is greater than or equal to five, then one is added to the last significant digit and all significant digits are eliminated.
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Chapter PSS Solutions
Introductory Chemistry: Concepts and Critical Thinking (8th Edition)
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