Rf Values and Chromatography

Name this formula
CO₂

• Sugar
• Water
• Carbon Dioxide
• Oxygen

Tags

NGSS.HS-ESS2-6

NGSS.HS-LS1-5

Name this formula
O₂

• Oxygen
• Water
• Sugar
• Hydrogen

Name this formula
 H₂O

• Oxygen
• Carbon
• Hydrogen Peroxide 
• Water

Tags

NGSS.MS-PS1-1

Name this formula
C₆H₁₂O₆

• Carbon Dioxide
• Hydrogen Peroxide 
• Sugar
• Vinegar

Which pigment traveled the farthest based on this chromatogram?

• Chlorophyll a

• Chlorophyll b

• Xanthophyll

• Carotene

Tags

NGSS.HS-LS1-5

Which pigment in plants is responsible for absorbing most of the light energy for the plant?

• Chlorophyll

• Xanthophyll

• Caretenoid

• Anthocyanin

Tags

NGSS.HS-LS1-5

What does the chemical chlorophyll absorb?

• food from sugar
• energy from sunlight
• food from factories
• processes

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

What does Rf stand for?

• Retardation factor

• Retention factor

• Refracting factor

• Retest factor

It is possible for an Rf value to be more than 1.

• True

• False

What is the Rf value of carotene?

• 0.96

• 0.50

• 0.33

• 1.09