Multiple Choice
Which of the following is NOT a rule regarding significant figures?
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1. Intro to General Chemistry
Significant Figures
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How many significant figures are present in the number 0.005?
A
2
B
1
C
3
D
5
Verified step by step guidance1
Identify the nonzero digits in the number 0.005. Significant figures include all nonzero digits and any zeros between them or after the decimal point if they are trailing.
Recognize that leading zeros (zeros before the first nonzero digit) are not significant. In 0.005, the zeros before the 5 are leading zeros.
Count the significant digits starting from the first nonzero digit. Here, the only nonzero digit is 5.
Since there is only one nonzero digit and no trailing zeros after it, the number 0.005 has exactly one significant figure.
Conclude that the correct number of significant figures in 0.005 is 1.
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