0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Why does the baseline need to be drawn in pencil?
A datum line mustn't be drawn in ink so that when you add the solvent while doing chromotography, the ink doesn't spread and it might even mix with the actual color that you are testing on and that could change the r f value whereas if you draw it with a pencil, the results would be more accurate. Hope that helps :)!
How do you get Ink out of my sharpie liquid pencil?
Well what you have to do is put your paper in a slant then wright. This pencil really dosent work well! :(
Why is it important to use only a pencil to mark the starting line of the chromatogram?
This is so you can know the base line. The base line is used as the starting point for the mesaurements used for the Rf values. you need to know the distance from the base line to the point of the spot to know the Rf values. see related link below for more info about paper chromatography
Why was a ball pen not used to draw the line?
In chemistry, a pen is not used to draw lines on chromatography paper. A pencil is used to draw lines on the paper because the ink can smear and interfere with the chromatography and the ink will dissolve in the chromatography solvent.
What is ink eraser made out of?
The same thing as a pencil eraser but ink erasers have grit in themyeah right
What results will it be if using a pen to draw the start line of paper chromatography?
You will get a chromatograph of the dyes in the pen's ink, instead of a reference mark.
Is line art the same as pencil art?
not neccessarily, because you can create line art with different medias such as ink. Line art, i think is the usage of lines to create a hidden image. Pencil art is, of course, usage of the glorious pencil.
What would happen if you made the line and points with an ink pen rather than a pencil?
Nothing !... It's just that pencil is easier to erase if you make a mistake.
What are the inputs of making a pencil?
not making a pencil the input is ink (: :)
What is the difference between a pen and a pencil?
you can sharpen a pencil and not a pen a pen has ink and a pencil does not.
What is the difference between ink erasers and pencil erasers?
one erases pencil marks and the other erases pen ink
Why should lines be drawn on the filter paper with a pencil not a pen?
the ink will run because ink is made up of diffrent colours and pencil does not
What is pencil to ink?
An less permanent alternative.
What was a pencil before the pencil was invented?
Ink mixed with ashes and oil. Charcoal was also used.
How do you do a drawing in pen and ink?
I have never used a pen and ink. I use a paint brush and a pencil.
Why is using a pen differ from writing with a pencil?
A pen uses ink while a pencil uses lead.
Why should Gary write the labels on paper in pencil why should he not write in ink?
With pencil you can erase, not with pen.
