Measurement Error in Analytical Instruments
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Questions and Answers

PERSONAL ERROR INCLUDE THE ABILITY TO SEE A CHANGE IN THE COLOR OF AN [BLANK] USED TO SIGNAL THE END POINT OF A TITRATION

INDICATOR

PERSONAL ERRORS CAN BE MINIMIZED WITH [BLANK]

PROPER CARE

WITHOUT KNOWING THE [BLANK] VALUE FOR AN ANALYSIS, THE USUAL SITUATION IN ANY ANALYSIS WITH MEANING, THERE IS NO ACCEPTED VALUE WITH WHICH THE EXPERIMENTAL RESULT CAN BE COMPARED

TRUE

A 25-ML VOLUMETRIC FLASK MIGHT HAVE A MAXIMUM ERROR OF ±[BLANK] ML

<p>0.03</p> Signup and view all the answers

ANALYTICAL INSTRUMENTS AND EQUIPMENT, SUCH AS GLASSWARE AND [BLANK], ARE USUALLY SUPPLIED BY THE MANUFACTURER WITH A STATEMENT OF THE ITEM'S MAXIMUM MEASUREMENT ERROR, OR TOLERANCE

<p>BALANCES</p> Signup and view all the answers

DETERMINATE ERRORS CAN BE [BLANK] TO DETECT

<p>DIFFICULT</p> Signup and view all the answers

A ______ error is one whose value is the same for all samples.

<p>constant determinate</p> Signup and view all the answers

______ is the precision obtained when all measurements are made by the same analyst during a single period of laboratory work.

<p>Repeatability</p> Signup and view all the answers

An ______ error causes some measurements or results to be too high while others are too low.

<p>intermediate</p> Signup and view all the answers

Evaluating the sources and relative magnitudes of ______ error can minimize its effect, although it cannot be eliminated.

<p>indeterminate</p> Signup and view all the answers

Precision is a measure of the ______ of data about a central value.

<p>spread</p> Signup and view all the answers

Manipulating samples during the analysis is one potential source of ______ error.

<p>indeterminate</p> Signup and view all the answers

A ______ error is any systematic error that causes a measurement to be consistently too high or too low.

<p>determinate</p> Signup and view all the answers

______ errors are caused by limitations in the analytical method used to analyze a sample.

<p>Method</p> Signup and view all the answers

Typical ______ errors for analytical equipment include calibration issues, electronic noise, and environmental factors.

<p>measurement</p> Signup and view all the answers

______ errors can be introduced when collecting samples for analysis, especially from heterogeneous materials.

<p>Sampling</p> Signup and view all the answers

Careless handling or improper use of equipment can lead to ______ errors in measurements.

<p>personal</p> Signup and view all the answers

Faulty or outdated equipment can contribute to ______ errors due to equipment limitations.

<p>measurement</p> Signup and view all the answers

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