Question Answers:
1.47. Write down the rules for determining the number of significant figures.
Question Answers:
1.47. Write down the rules for determining the number of significant figures.
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1 Answer
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1.47. These rules for determining the number of significant figures are stated below:
(1) All non-zero digits are significant. For example, in 285 cm, there are three significant figures and in 0.25 mL, there are two significant figures.
(2) Zeros preceding to first non-zero digit are not significant. Such zero indicates the position of decimal point. Thus, 0.03 has one significant figure and 0.0052 has two significant figures.
(3) Zeros between two non-zero digits are significant. Thus, 2.005 has four significant figures.
(4) Zeros at the end or right of a number are significant, provided they are on the right side of the decimal po
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