Analytical Chemistry Quiz

What is the definition of Analytical Chemistry?

• The study of chemical reactions

• The study of organic compounds

• The science of chemical measurements

• The study of atomic structure

What is the sought for species or desired constituent in a sample called?

• Indicator

• Analyte

• Matrix

• Quantifier

What type of analysis establishes the chemical identity of the species in the sample?

• Partial Analysis

• Structural Analysis

• Quantitative Analysis

• Qualitative Analysis

Which method measures the volume of a solution containing enough reagent to react completely with the analyte?

• Gravimetric Method

• Volumetric Method

• Electroanalytical Method

• Spectroscopic Method

What is the measure of the variability or dispersion within a set of replicated values or results obtained under the same prescribed conditions?

• Standard Deviation

• Precision

• Variance

• Coefficient of Variation

What type of error is caused by imperfections in measuring devices and instabilities in their components?

• Method Errors

• Gross Error

• Personal Errors

• Instrumental Errors

What is the number of significant figures in the antilogarithm equal to?

• The number of decimal places in the measurement

• The number of trailing zeroes in the measurement

• The number of digits in the mantissa

• The number of significant figures in the logarithm

What is the statistical test for deciding whether a suspected result should be retained or rejected?

• F-Test

• T-Test

• Z-Test

• Q-Test

What is the measure of the closeness of the measurement to its true or accepted value?

• Precision

• Standard Deviation

• Absolute Error

• Relative Error

What is the process of selecting representative material to analyze called?

• Purification

• Isolation

• Sampling

• Extraction