Page |1
Analytical Chemistry Questions with
Detailed Verified Answers (100% Correct
Answers) /Already Graded A+
_____ chemical analysis is the measurement of how much of a chemical substance is present. ______
chemical analysis is the determination of what is present in a sample.
Ans: Quantitative; Qualitative
____ is the substance being measured during a chemical analysis.
Ans: Analyte
How many grams of sodium acetate (NaCH3CO2) should one use to make a 500.0 ml solution of
sodium acetate with a concentration of 150.0 ml
Ans: 6.152 g
What instrument(s) or tool(s) have the ability to produce a micrograph?
Ans: SEM; TEM
What volume of 12.1 M HCl must be diluted to prepare a 0.2500 M HCl solution with a volume of
2.000 L?
Ans: 41.3 mL
_______ is the upward force exerted on an object in a gaseous or liquid fluid. The mass measured by
an analytical balance in the air is ________ its actual mass.
Ans: Buoyancy; lighter than
A student prepares a Na Cl solution using a 1 L volumetric flask. When done, the meniscus us above
the calibration mark on the flask neck. The concentration of the solution is:
Ans: Less than calculated
Calculate the mass of a heterogeneous mixture containing 139.32 grams of sand, 34.99 grams of
gravel, and 9.372 grams of salt.
Ans: 183.68 Grams
_______ is a consistent error that can be detected and corrected.
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Ans: Systematic error
The Gaussian distribution is characterized by the _____ and the _______.
Ans: Mean; standard deviation
A graph of detector response as a function of analyte concentration is known as a:
Ans: Calibration curve
What is the dilution equation (only the mathematical equation)?
Ans: (M1)(V1) = (M2)(V2)
What is a limiting reagent?
Ans: Substance you run out of first.
Explain the difference between precision and accuracy.
Ans: Accuracy: how close you were to the correct answer
Precision: how close you were to your own findings
Name of TEM
Ans: Transmission Electron Microscopy
Name of SEM
Ans: Scanning ELectron Microscopy
Name of XRD
Ans: X-Ray diffraction
Name of GC-MS
Ans: Gas Chromatography- Mass Spectrometer
Name of FT-IR
Ans: Fourier Transform-Infra Red
Tera (T)
Ans: 10^12
mega (M)
Analytical Chemistry Questions with
Detailed Verified Answers (100% Correct
Answers) /Already Graded A+
_____ chemical analysis is the measurement of how much of a chemical substance is present. ______
chemical analysis is the determination of what is present in a sample.
Ans: Quantitative; Qualitative
____ is the substance being measured during a chemical analysis.
Ans: Analyte
How many grams of sodium acetate (NaCH3CO2) should one use to make a 500.0 ml solution of
sodium acetate with a concentration of 150.0 ml
Ans: 6.152 g
What instrument(s) or tool(s) have the ability to produce a micrograph?
Ans: SEM; TEM
What volume of 12.1 M HCl must be diluted to prepare a 0.2500 M HCl solution with a volume of
2.000 L?
Ans: 41.3 mL
_______ is the upward force exerted on an object in a gaseous or liquid fluid. The mass measured by
an analytical balance in the air is ________ its actual mass.
Ans: Buoyancy; lighter than
A student prepares a Na Cl solution using a 1 L volumetric flask. When done, the meniscus us above
the calibration mark on the flask neck. The concentration of the solution is:
Ans: Less than calculated
Calculate the mass of a heterogeneous mixture containing 139.32 grams of sand, 34.99 grams of
gravel, and 9.372 grams of salt.
Ans: 183.68 Grams
_______ is a consistent error that can be detected and corrected.
, Page |2
Ans: Systematic error
The Gaussian distribution is characterized by the _____ and the _______.
Ans: Mean; standard deviation
A graph of detector response as a function of analyte concentration is known as a:
Ans: Calibration curve
What is the dilution equation (only the mathematical equation)?
Ans: (M1)(V1) = (M2)(V2)
What is a limiting reagent?
Ans: Substance you run out of first.
Explain the difference between precision and accuracy.
Ans: Accuracy: how close you were to the correct answer
Precision: how close you were to your own findings
Name of TEM
Ans: Transmission Electron Microscopy
Name of SEM
Ans: Scanning ELectron Microscopy
Name of XRD
Ans: X-Ray diffraction
Name of GC-MS
Ans: Gas Chromatography- Mass Spectrometer
Name of FT-IR
Ans: Fourier Transform-Infra Red
Tera (T)
Ans: 10^12
mega (M)
