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Should you always put a glass stopper on top of the condenser when performing a reflux?
Wiki User
∙ 14y ago
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
Wiki User
∙ 14y ago
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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!!
When performing titrations why should you constantly stir the contents?
During a titration, reactant from the burette are added drop wise. It may not reach the bottom, which might result in an incorrect endpoint. The flask is always stirred to mix the reactants in the flask evenly.
When should you waft a chemical?
Always. Solids, liquids, and gases should be wafted.
The sum of the oxidation number in a neutral compound is always what?
It is eual to zero.Neutral atoms are pure form.
Why should a metal table lamp always be earthed?
to ensure safety
When performing a kick what should you always lead with?
This dick
What should you be sure to stay safe when performing science activities?
you should always ask a teacher what you are doing
Should you always use sterilized water for smear preparation?
Yes, when you are performing smear preparation, you should always use sterilized water. This will ensure that nothing contaminates your slide.
Should you wash your hands before you do an experiment?
Yes, you should always be sterile before performing any experiment as to not add any variables.
What problems can a bad ignition condenser cause on a 1971 volkswagen super beetle?
If you have a bad condenser your car won't run. Always carry a spare set of points and condenser (you change them together) in the glovebox.
Should i wear my glasses when performing eye exercises?
No. It is always good to perform eye exercise to the strength of your eyes.
What safety precaution should you take when performing an experiment that involves electricity?
Always perform the experiment under adult supervision.
What is the purpose of verifying your data after performing a backup?
To be sure your backup is good. The worst thing that can happen is to depend on a backup that wasn't successful. Backups should always be verified.
Why the cooling water enters the condenser at the lower opening and leaves at the upper opening?
Because if water enters from the lowest point, the condenser will always be filled with cold water to ensure efficient cooling. The water should always flow into a condenser at its lowest point and exit from its highest point. This avoids trapping air in the water jacket.
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.
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!!
What are the indicators of a performing business?
If it is a publicly traded business you can always look at the stock price! But profits, rate of growth, reputation ect.. could also indicate a performing business!
