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If you multiply 3.24 by 2.1, what is the product expressed to the correct number of 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 measurement 0.00450 g?
A
5
B
3
C
2
D
4
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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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