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Between The Second And Thrid Fingers
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∙ 13y ago
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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?
How do you find the density of a glass stopper?
Find its mass using a beam balance,and volume by a measuring can full of water,and divide both to get volume
What is the difference between a stopper and a bung?
A bung is almost always made of plastic/rubber and it could have a hole in it to allow you to insert glass tubes/thermometers etc. These are the ones which you usually use to close off test tubes for short periods of time (i.e, during a reaction etc.) A stopper on the other hand usually refers to a glass stopper which could go in an Erlenmeyer flask for storage or in a separating funnel when it is being inverted and shaken. It is confusing because people often refer to bungs as stoppers and say 'stopper off the test tube' when they mean for you to use a bung. The general rule of thumb is that a bung is usually used in place of a stopper unless you are specifically told to do so!!
Was waterford crystal made in blue glass bottle with a stopper?
I have a blue crystal bottle with little red stones and gold trimming top broken and bottom broke can you fix it
Should you always put a glass stopper on top of the condenser when performing a reflux?
NO. Since there is no way for the heater air to escape the condensor, pressure will start to build up and it will eventually blow up
The correct method of removing a glass stopper is to grasp it?
between the secon and third finger
I have a beautiful glass globe hummingbird feeder that has a rubber stopper. How can I stop the nectar from leaking out of the stopper?
If there is debris on the stopper it might be preventing a good seal. Try removing the rubber stopper and wipe it off to remove any debris that might be on it. Clean out the hole that the stopper goes into as well. This will help ensure a clean seal between the hole and the stopper. Put the stopper back into the hole, making sure it is a tight fit. If it still leaks you may need to buy a new stopper.
How get glass stopper out of a glass bottle?
Grease the top of the bottle!
What are the reasons for the using glass-stopper bottles for acids and plastic stoppered bottles for bases?
If strong bases are present in the glass-stopper bottles, they may react with the glass and etch it or change the concentration of the base. Hence plastic-stopper bottles are used for bases.
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?
How can I open an antique glass kitchen container with a stuck glass stopper?
Run warm to hot water over the neck of the container. This will expand the neck and the stopper should come out.
What are the definition corks and glass plate?
See these two questions for the answer:[http://wiki.answers.com/Q/What_is_a_rubber_stopper_or_cork_stopper_and_how_are_they_usedWhat is a rubber stopper or cork stopper and how are they used?]and[http://wiki.answers.com/Q/What_is_a_glass_plate_and_how_is_it_usedWhat is a glass plate and how is it used?]
What is ground glass?
It can either be glass that has been ground to a powder, or two glass surfaces that have been ground to fit together precisely, such as a glass stopper in a glass chemical bottle.
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
Why must the glass stopper of a reagent bottle never be placed directly on the laboratory bench?
The stopper of a chemical reagent container should be handled carefully for two reasons. Firstly, it may contain chemical residues which can be dangerous. Additionally, if the stopper is dirtied it may contaminate the reagent in the bottle when the stopper is put back on.
What are the safety precautions and techniques when inserting a glass tubing in a rubber stopper?
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.
How do you get a stock glass stopper out of a bottle?
all you have to do is take the bottle to mars and ask the aliens to open it for you> yeah don't listen to that idiot> you just use pliars to carefully remove the stopper
