Chapter 3 Flashcards
Expresses the margin of uncertainty associated with a measurement
Absolute uncertainty
Nearness to the “truth”
Accuracy
The antilogarithm of a is b if 10^a = b
Antilogarithm
Samples sold by national measurement institutes and containing known quantities of analytes to test accuracy of analytical procedures
Certified reference material
The integer part of a logarithm
Characteristic
A consistent error that can be detected and corrected
Systematic (determinate) error
Cannot be eliminated, but it might be reduced by a better experiment
Random (indeterminate) error
The base 10 logarithm of n is a if 10^a = n
Logarithm
The decimal part of a logarithm
Mantissa
The natural logarithm (ln) of a is b if e^b = a, where e = 2.71828
Natural logarithm
Reproducibility
Precision
Compared the size of the absolute uncertainty with the size of its associated measurement
Relative uncertainty
Minimum number of digits required to express a value in scientific notation without loss of precision
Significant figures