create a lab report with the given information.
This video shows an example of a chromatography experiment.
The goal of the experiment is to separate the different pigments of ink which are present in a wet erase marker, which we'll see.
Right here, so, uh, visavi marker is wet erase, which means that the pigments are water soluble.
We'll start our experiment by drawing a line with the marker on the chromatography paper.
Then what we want to do is insert that chromatography paper into a beaker with a small volume of water in it.
We can see that the water will start to rise up the chromatography paper because of capillary action.
You'll note this happening very quickly because this is 16 times speed playback.
We can see that the ink which we originally looked black.
Is starting to separate into different colors?
This is because the different pigments have different properties, some of them are heavier, some are lighter, some are more soluble in water, some are less because of these differing properties, all of the different colors are going to travel at different speeds.
And by the completion of our experiment, we should see some very nice separation of the different pigment colors.
Now to do analysis of our results.
What we're going to want to do is to measure the distance traveled by each pigment.
Let's pause here for a moment, so I want to measure the maximum distance traveled by the water and then by each different pigment starting at the line drawn on the paper.
To be fair, we should be comparing the distance traveled by the water starting from the same point where the pigment started traveling, so we'll measure all of our distances starting at this point, it looks like the maximum distance traveled by the water reaches about to here and then we can measure the maximum distance traveled by each of the different pigments.
Let's continue our playback.
The final part of our analysis will be to calculate an RF value.
This is going to be a different calculated number for each different color pigment for a pigment which travels exactly the same distance traveled by water, which is the solvent or the mobile phase in this?
Experiment the RF value would calculate to be one.
That's because the distance traveled by the pigment would be the same as the distance traveled by the water.
If we had a pigment color which travels half the distance of the water, the RF value for that pigment would be 0.5.
To create a lab report with the given information, you can follow these steps:
1. Title: Give the lab report a descriptive title, such as "Chromatography Experiment to Separate Ink Pigments."
2. Introduction: Provide background information about the experiment and its goal. Mention that the experiment aims to separate the different pigments of ink in a wet erase marker using chromatography paper and water.
3. Materials: List the materials used in the experiment, including a wet erase marker, chromatography paper, a beaker, and water.
4. Procedure: Describe the step-by-step procedure of the experiment. Include the following steps:
a. Draw a line with the wet erase marker on the chromatography paper.
b. Insert the chromatography paper into a beaker with a small volume of water.
c. Observe the rise of water up the chromatography paper due to capillary action.
d. Note the separation of the ink into different colors as the pigments have varying properties.
e. Allow the experiment to run until there is noticeable separation of pigment colors.
5. Results:
a. Describe the observations made during the experiment, mentioning the separation of the ink into different colors.
b. Measure and record the maximum distance traveled by the water and by each pigment from the starting line on the paper.
c. Calculate the RF (retention factor) value for each pigment. Explain that the RF value is a calculated number that compares the distance traveled by the pigment to the distance traveled by the water.
d. Provide examples of RF values, such as 1 for a pigment with the same distance as the water and 0.5 for a pigment traveling half the distance of the water.
6. Discussion and Conclusion:
a. Discuss the significance of the results obtained and how they relate to the goal of the experiment.
b. Analyze the separation of pigment colors and any patterns observed.
c. Evaluate the reliability and accuracy of the experimental procedure.
d. Mention any limitations or sources of error that may have affected the results.
e. State any conclusions drawn from the experiment.
7. References: Provide citations for any sources used in the lab report, such as the video mentioned at the beginning.
Remember to format the report according to any specific guidelines given by your instructor or institution, including font, spacing, and referencing style.