ACS CP Analytical Chemistry & Instrumentation

Question 1

What is the purpose of a spectrophotometer in analytical chemistry?

Accepted Answer

Measure light absorption

Answer

Measure pH levels

Answer

Measure temperature

Answer

Measure pressure

Question 2

Which technique separates compounds based on their interaction with a stationary phase?

Accepted Answer

Chromatography

Answer

Spectroscopy

Answer

Titration

Answer

Centrifugation

Question 3

In atomic absorption spectroscopy (AAS), what is measured?

Accepted Answer

Absorption of light by atoms

Answer

Emission of light

Answer

Mass of molecules

Answer

Conductivity

Question 4

What does a pH meter measure?

Accepted Answer

Hydrogen ion concentration

Answer

Salt concentration

Answer

Temperature

Answer

Solubility

Question 5

Which analytical technique measures mass-to-charge ratios?

Accepted Answer

Mass spectrometry

Answer

Chromatography

Answer

Spectrophotometry

Answer

Titration

Question 6

What is the primary function of titration in analysis?

Accepted Answer

Determine concentration

Answer

Measure boiling points

Answer

Measure density

Answer

Identify gases

Question 7

Which detector is used in gas chromatography?

Accepted Answer

Flame ionization detector

Answer

Thermal conductivity detector

Answer

Photodiode array

Answer

Spectrometer

Question 8

Which method is ideal for identifying metal ions?

Accepted Answer

Atomic emission spectroscopy

Answer

Gravimetric analysis

Answer

Titration

Answer

Polarimetry

Question 9

Which technique uses a mobile phase to move compounds through a stationary phase?

Accepted Answer

Chromatography

Answer

Spectrophotometry

Answer

Titration

Answer

Conductometry