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What are the safety precautions and techniques when inserting a glass tubing in a rubber stopper?
Wiki User
∙ 11y ago
never attempt to insert glass tubing that has a jagged end, all glass tubing should be fire polished before its inserted into a rubber stopper. Use water or glycerin as a lubricant at the end of the glass tubing before inserting it into the rubber stopper. ask teacher for proper lubricant. Protect hands and fingers by wearing leather gloves or placing a folded cloth between your hands and the tubing. hold it as close as possible to the part it is inserted to the rubber stopper. always point the tubing away from the palm of your hand that holds the stopper. use a twisting motion and push the tubing into the stopper. At the end of the experiment put on leather gloves or place the folded cloth between your hands and the tubing and remover the stoppers from the tubing to keep them from sticking to the glass. if it wont budge, use lubricant.
Wiki User
∙ 11y ago
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When magnesium reacts quickly with hydrochloric acis to produce hydrogen gas in a glass tube with a rubber stopper why would the rubber stopper burst of?
rubber stopper burst up because it has strong afinity with hydrogen
What is the use of beaker cover?
A beaker cover is called a rubber stopper or metal stopper(depends on what the stopper is made of).
What is the hole in the rubber stopper for?
To let air go thru
Why are the tubes sealed with rubber stopper rather than left open?
To avoid loss of substances.
What are the laboratory apparatus of rubber plug?
The main reason for a rubber stopper is to stop gas or liquid from coming out of the container. Rubber stoppers can also prevent contamination of samples by keeping the laboratory glassware safe.
What is the purpose of wetting the glass tubing before inserting into a stopper?
What is the purpose of wetting the glass tubing before inserting into a stopper?
Where can you buy a rubber stopper?
You can buy an rubber stopper at widget-co.com. They are not that expansive ethier
When magnesium reacts quickly with hydrochloric acis to produce hydrogen gas in a glass tube with a rubber stopper why would the rubber stopper burst of?
rubber stopper burst up because it has strong afinity with hydrogen
Would a rubber stopper float in water?
i don't know... That's why I'm asking you. soo.. Does a rubber stopper float in water?
When a rubber stopper has a mass of 8.46g was immersed in a graduated cylinder containing 25 ml of water the water rose to 30.9 ml Calculate the densityof the rubber stopper?
Since the difference in volume corresponds to the volume of the stopper, the volume of the stopper=30.9-25=5.9ml Thus density of the rubber stopper=mass/vol=(8.46/5.9)g/ml
Why is it important to touch a charged object to the metal rod of an electroscope and not to the rubber stopper?
it is important because if you don't and touch the rubber stopper it will not show if it is positive.
What is the average life expectancy of a rubber stopper?
This is very variable and depends on: - type of rubber - temperature - pressure on the stopper - the liquid in contact - other conditions of use
What is the use of rubber stopper in laboratory apparatus?
pantakip.
What is the use of rubber stopper's laboratory apparatus?
pantakip.
What is the use of beaker cover?
A beaker cover is called a rubber stopper or metal stopper(depends on what the stopper is made of).
How do you replace rubber brake stopper on a 2001 Nissan Xterra?
remove the pedal arm pin so that you can freely move the pedal and have an access to the rubber stopper slots.
Why must KClO3-MnO2 mixture be kept away from the rubber stopper?
KCIO3-MNO2 cannot comes in contact with the rubber stopper otherwise, or a severe explosion may result.
