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A flask fitted with a stopper that is used in the preparation of solution?
Wiki User
∙ 13y ago
volumetric flask
Wiki User
∙ 13y ago
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How do clean a beaker?
Acid washing it should do. I assume you are in a lab...in which case a 1:1 Hydrochloric Acid solution can be poured into the flask. DON'T FORGET TO PUT GOGGLES AND GLOVES ON. Put the lid on. Shake the flask and turn it to ensure all surfaces of the glass inside are being washed with the acid. Then, give it a good triple rinse with de-ionized water. If you are just at home, pour in some white vinegar and let it sit for a while. That should break up anything that's inside.
How do you prepare 6N HNO3 solution?
Example: starting fom nitric acid 65 % For 1 000 mL nitric acid solution 6 N: - put in a clean conical volumetric flask of 1L, 581,6 mL of the 65 % acid - add slowly demineralized water to the mark, at 20 0C - attach the cap of the flask - stir the flask - attach a label with HNO3 6 N, the date of preparation, name of the operator
Which is the best instrument to prepare a solution?
Volumetric Flask
Why receiving flask supposed to be kept on ice during preparation of cyclohexene?
Cyclohexene is a volatile liquid Thus, the flask is cooled to reduce the degree of evaporation to a minimum
What is the initial pH of the solution in the Erlenmeyer flask?
Q. needs more information on: WHAT is in solution, and at WHAT concentration
What stoppers a flask?
Normally cork or rubber is used as a stopper in a flask.
What is the use of iodine flask?
An Iodine Flask is essential an Erlenmeyer Flask with a stopper used for the wet chemical analysis "Iodine Determination" . This analysis is typically performed on fatty acids, oils and shellac varnishes.
What size rubber stopper fits in a 1000 ml Erlenmeyer flask?
Size 8.
Why an Erlenmeyer flask containing a hot solution is not tightly stoppered?
Because... if it's tightly sealed - during cooling the volume of the solvent will decrease - making the pressure inside lower than outside he flask. This could be enough for the glass to shatter - spilling the contents.
What is a volumetric flask and its uses?
A volumetric flask is a piece of laboratory glassware used in analytical chemistry for the preparation of solutions. It is made of glass or plastic and consists of a flat bottomed bulb with a long neck, usually fitted with a stopper. The stopper is normally made in a chemically resistant plastic such as polypropylene rather than glass. The neck has a single ring graduation mark and a label. The label should show the nominal volume, tolerance, calibration temperature, class, relevant manufacturing standard and the manufacturer’s logo. The glass or plastic is generally clear but may be amber colored for handling light sensitive compounds such as silver nitrate or vitamin A.
How do clean a beaker?
Acid washing it should do. I assume you are in a lab...in which case a 1:1 Hydrochloric Acid solution can be poured into the flask. DON'T FORGET TO PUT GOGGLES AND GLOVES ON. Put the lid on. Shake the flask and turn it to ensure all surfaces of the glass inside are being washed with the acid. Then, give it a good triple rinse with de-ionized water. If you are just at home, pour in some white vinegar and let it sit for a while. That should break up anything that's inside.
Why should the Na OH pellets be completely dissolved in the preparation of the Na OH solution?
Well the point of a solution is that any solids involved are dissolved. Otherwise there is never any chance of having a homogenous solution (equal concentration, anywhere in the volumetric flask)
What is the titration flask?
It is the conical flask in which the solution from the burette flows into and which you add the indicator into.
Method for preparation of 1 normal sulfuric acid?
normality of A = #gram equivalent weights A divided by #litres of solutionthus: measure a gram equivalent of H2SO4 (49g) and add to 1000ml volumetric flask that has 500ml deionized distilled H2O. stopper flask, mix by swirling, open flask and fill to 1000ml mark, thoroughly mixOR1N H2SO4 = 0.5M H2SO4volumetrically measure 500ml 1M H2SO4volumetrically transfer to 1000ml volumetric flask (using DDH2O)fill to 1000ml mark with DDH2O
Why there is a exchange of heat in a thermos flask after 2hours?
Because - even though the vacuum between the layers of the flask is almost perfect, the junction between the flask and its stopper creates a 'weak spot' where a small amount of heat can escape over time.
What is the use of the filterring flask?
The filtering flask is used to collect the solution resulted from a filtration.
Do you use titrant in conical flask?
yes we use titrant in the conical flask ,this is because titrant is a solution we use in burrete for titration in this process we titrant the solution in the conical flask along with an indicator
