What is the color of pigment that can be found in green plants at different wavelength using a colorimeter?

by izzuddin (student)

Name: Muhammad Izzuddin bin Ab Aziz

Class: M11P

Title: Colors of Light (Wavelengths) Absorbed By Green Plants

Introduction: Refer attachment.

Objective: Refer attachment.

Research question: What is the color of pigment that can be found in green plants at different wavelength using a colorimeter?

Materials: Refer attachment.

Method: Refer attachment.

Data collection:

Qualitative data:

Table 1: The absorbance of light for mustard and spinach in different wavelength.

Qualitative data:

Mustard:

The green mustard was put into the boiling water and then it become softer than it was before.
The mustard was grind using a mortar until it become it form of paste.
When it was in that form, it released an odor that can be smell.
The colorless acetone was added and grind together.
Then, the solution produce was transfer into centrifuge tube and after the process using the centrifuge was done, the layer between supernatant and the precipitate which both are green in color.

Spinach:

The spinach was put into the boiling water and then it become softer than it was before.
The spinach was grind using a mortar until it become it form of paste.
When it was in that form, it released an odor that can be smell.
The colorless acetone was added and grind together.
Then, the solution produce was transfer into centrifuge tube and after the process using the centrifuge was done, the layer between supernatant and the precipitate which both are very concentrated purple color.
The solution went through a few time process of dilution to make it bit more diluted.