Chromatography Quiz

What is chromatography?

• Chromatography is a technique used to measure the volume of substances.

• Chromatography is a technique used to heat substances.

• Chromatography is a technique used to separate and analyze mixtures of substances.

• Chromatography is a technique used to combine substances.

What is the purpose of paper chromatography?

• To separate and analyze the components of a mixture.

• To determine the pH of a solution.

• To measure the temperature of a substance.

• To calculate the density of a liquid.

Tags

NGSS.MS-PS1-2

What are the basic components required for paper chromatography?

• filter paper, solvent, sample

• plastic sheet, solvent, sample

• glass plate, solvent, sample

• paper, solvent, sample

How does paper chromatography separate mixtures?

• By heating the mixture to evaporate the solvent.

• By using a magnetic field to separate the components.

• By using a stationary phase (the paper) and a mobile phase (the solvent)

• By using a filter to physically separate the components.

What is the stationary phase in paper chromatography?

• The solvent used in the chromatography process.

• The paper itself

• The mobile phase in paper chromatography.

• The color of the ink being separated in paper chromatography.

What is the mobile phase in paper chromatography?

• water

• solid

• gas

• solvent or mixture of solvents

What is the Rf value in paper chromatography?

• The Rf value in paper chromatography is a measure of the size of the paper used.

• The Rf value in paper chromatography is a measure of the temperature of the solvent.

• The Rf value in paper chromatography is a measure of the concentration of the compound.

• The Rf value in paper chromatography is a measure of the distance traveled by a compound relative to the distance traveled by the solvent front.

How is the Rf value calculated?

• By adding the distance traveled by the compound to the distance traveled by the solvent front.

• By dividing the distance traveled by the compound by the distance traveled by the solvent front.

• By multiplying the distance traveled by the compound by the distance traveled by the solvent front.

• By subtracting the distance traveled by the compound from the distance traveled by the solvent front.

What factors can affect the separation in paper chromatography?

• type of ink used, thickness of the paper, pressure, presence of impurities

• pH of the solvent, color of the paper, humidity, concentration of the molecules

• solvent, type of paper, temperature, size of molecules

• duration of the experiment, brand of the paper, light intensity, viscosity of the solvent

What are some applications of paper chromatography?

• Forensic science, biochemistry, and environmental analysis

• Food industry, pharmaceutical industry, and textile industry.

• Astronomy, geology, and psychology.

• Sports science, computer science, and music industry.

Tags

NGSS.HS-PS1-2