EMCE Lesson 4.1 Daily Grade

Solutions can have more than one solute.

• True

• False

To separate markers into the different solutes (colors) they are made from can be done using a process called _______.

• chromatography

• evaporation

• filtration

• sedimentation

Ink can be separated by a method of -----------------------------------------------

• distillation

• filtration

• chromatography

• sedimentation

A pure substance shows ------------------ spot on chromatogram

• 0

• 1

• 2

• 3

The R_f value for the blue component is

• 0.3

• 0.7

• 10

• 0.1

The R_f value for the red component is

• 0.3

• 0.7

• 10

• 0.1

A substance is soluble if it can be dissolved.

In paper chromatography, the most soluble solute _____________________ .

• does not move from the start point

• stays closest to the start point

• travels furthest away from the start point

• can be found in the middle of the chromatogram

In the image, which dye is the most soluble?

• Red

• Blue

• Purple

Tags

NGSS.MS-PS1-2

What is the R_f value of the purple dye?

• 0.6

• 0.2

• 0.4

• 0.8

• 1.0

Tags

NGSS.MS-PS1-2

What is the R_f value of the red dye?

• 0.6

• 0.2

• 0.4

• 0.8

• 1.0

Tags

NGSS.MS-PS1-2