Multiple Choice
If you multiply 3.24 by 2.1, what is the product expressed to the correct number of significant figures?
1. Intro to General Chemistry
Significant Figures
Multiple Choice
How many significant figures are present in the measurement 0.00450 g?
A
5
B
3
C
2
D
4
Verified step by step guidance1
Identify all the digits in the measurement 0.00450 g and determine which are significant figures.
Recall that leading zeros (zeros before the first nonzero digit) are not significant; they only indicate the position of the decimal point.
Count the digits starting from the first nonzero digit: in 0.00450, the digits '4', '5', and the trailing zero after '5' are significant.
Understand that trailing zeros after a decimal point are significant because they indicate precision in the measurement.
Conclude that the number of significant figures in 0.00450 g is 3, corresponding to the digits '4', '5', and the trailing zero.
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