(a)
Interpretation: The number of significant figures in 0.00052 m needs to be determined.
Concept Introduction: There are following rules need to be followed to identify the significant figures in a number:
- All non-zero digits are significant.
- Trailing zeros are not significant.
- Trailing zeros after the decimal is significant.
(a)
Explanation of Solution
The given number is 0.00052 m. Since all non-zero digits are significant and all the zeros after the decimal are not significant; thus, the given number has 2 significant figures.
(b)
Interpretation: The number of significant figures in
Concept Introduction: There are following rules need to be followed to identify the significant figures in a number:
- All non-zero digits are significant.
- Trailing zeros are not significant.
- Trailing zeros after the decimal is significant.
(b)
Explanation of Solution
The given number is
(c)
Interpretation: The number of significant figures in 5.050 mg needs to be determined.
Concept Introduction: There are following rules need to be followed to identify the significant figures in a number:
- All non-zero digits are significant.
- Trailing zeros are not significant.
- Trailing zeros after the decimal is significant.
(c)
Explanation of Solution
The given number is 5.050 mg. Here, non-zero digits are significant. Zero between two non-zero digits will be significant. Also, trailing zero after the decimal is significant; thus, the number of significant digits will be 4 in this case.
(d)
Interpretation: The number of significant figures in 8.700 mL needs to be determined.
Concept Introduction: There are following rules need to be followed to identify the significant figures in a number:
- All non-zero digits are significant.
- Trailing zeros are not significant.
- Trailing zeros after the decimal is significant.
(d)
Explanation of Solution
The given number is 8.700 mL. Here, non-zero digits are significant. Also, trailing zero after the decimal is significant; thus, the number of significant digits will be 4 in this case.
Chapter 8 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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