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Why does a test tube filled with glycerol disappear in a beaker filled with glycerol?
Wiki User
∙ 10y ago
Glycerin has essentially the same refractive index as glass, so any light passing through the two is bent equally. Since both are transparent it's not possible for your eye to distinguish the boundary by a change in the angle of refraction, and the glass seems to vanish.
Wiki User
∙ 16y ago
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Which is smaller a beaker or a test tube?
It depends on the volume of the beaker and the test tube. Although throughout my scientific experience, beakers are larger than test tubes.
How can you tell if glucose starch water and iodine passes through the cell membrane?
place starch solution inside the partially permeable membrane and than partially submerge it a beaker filled with distilled water. after some time, take the tubing out and test the water inside the beaker for starch by adding iodine solution. if the tubing is permeable to starch, the starch would have diffused into the water in the beaker and test positive for starch and turn dark blue. if not, then the water in the beaker would test negative for starch and remain a yellowish brown solution.
What is the principle behind the kraut's test for lipids?
Kraut's test for lipids is a test for glycerol. One of the reagents used in Kraut's test for lipids is bismuth subnitrate
What are the big test tubes called?
Bigger, fatter test tubes are usually called boiling tubes.
How can one lower a crystal in a beaker of water using a test tube?
Put a glass tube into the beaker of water so that it touches the bottom, then drop the crystal down the tube and put your finger over the top of the, then remove the tube gently, leaving the crystal behind in the beaker. After that laugh maniacally at the test tube and you might become an evil genius! Hope this helps! :)
Is glycerol positive for acrolein test?
yes
Which is smaller a beaker or a test tube?
It depends on the volume of the beaker and the test tube. Although throughout my scientific experience, beakers are larger than test tubes.
Which is better for heating beaker or a test tubeand why?
A beaker is better for heating compared to a test tube because it does not break up easily.
How can you tell if glucose starch water and iodine passes through the cell membrane?
place starch solution inside the partially permeable membrane and than partially submerge it a beaker filled with distilled water. after some time, take the tubing out and test the water inside the beaker for starch by adding iodine solution. if the tubing is permeable to starch, the starch would have diffused into the water in the beaker and test positive for starch and turn dark blue. if not, then the water in the beaker would test negative for starch and remain a yellowish brown solution.
Which are used for storing liquids and chemicals?
test tube, beaker??
What is a large tube called?
the largest test tube is beaker
What is the principle behind the kraut's test for lipids?
Kraut's test for lipids is a test for glycerol. One of the reagents used in Kraut's test for lipids is bismuth subnitrate
Are test tubes used to measure volume?
Not usually. A beaker is used for measurement.
What laboratory tools are used measuring liquid substance?
beaker,test tube,
What laboratory tools are used for measuring liquid substances?
beaker,test tube,
What are the big test tubes called?
Bigger, fatter test tubes are usually called boiling tubes.
What are the 2 instruments you use to measure the mass of the liquid?
a beaker,pipette or test tube.
