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How many significant figures are in 0.00305 00
0.0045 s
0.0020 m
0.0356 g
repeated measurements agree closely
show the decimal place of the first significant digit
5
accurate
good precision
A measurement that closely agrees with an accepted value is best described as
0.0045 s
0.0020 m
0.0356 g
repeated measurements agree closely
show the decimal place of the first significant digit
5
accurate
good precision
A numerical result is said to have good precision if
0.0045 s
0.0020 m
0.0356 g
repeated measurements agree closely
show the decimal place of the first significant digit
5
accurate
good precision
Which measurement has only nonsignificant zeros?
0.0045 s
0.0020 m
0.0356 g
repeated measurements agree closely
show the decimal place of the first significant digit
5
accurate
good precision
The measurement 0.035550 g rounded off to 3 significant figures would be
0.0045 s
0.0020 m
0.0356 g
repeated measurements agree closely
show the decimal place of the first significant digit
5
accurate
good precision
For numbers less than 0.1, such as 0.05, the zeros to the right of the decimal point but before the first nonzero digit
0.0045 s
0.0020 m
0.0356 g
repeated measurements agree closely
show the decimal place of the first significant digit
5
accurate
good precision
Which of these measurements has been expressed to 2 significant figures?
0.0045 s
0.0020 m
0.0356 g
repeated measurements agree closely
show the decimal place of the first significant digit
5
accurate
good precision
A chemist obtained the values 5.22 g, 5.23 g, and 5.22 g for the mass of a sample. Without knowing the true mass of the sample , it can be said that these values have
0.0045 s
0.0020 m
0.0356 g
repeated measurements agree closely
show the decimal place of the first significant digit
5
accurate
good precision
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