What is the uses of Erlenmeyer flask?
What is the uses of Erlenmeyer flask?
Mixing
Which is the best reason for using an Erlenmeyer flask?
the erlenmeyer flask is the only container that can hold a liquid. the erlenmeyer flask’s narrow mouth makes it easier to pour the solution. the erlenmeyer flask’s narrow mouth can support the funnel and prevent breakage.
What goes into the Erlenmeyer flask?
An Erlenmeyer flask or conical flask is a kind of flask with a base in the shape of a cone and a short neck. This type of flask is used as a container for chemical substances, or to heat or boil liquids. It does not allow liquids to spill easily. It is also used in titration.
Why would you use a flask instead of a beaker?
Flasks can be used for holding and measuring solutions, as well as for chemical reactions and phase changes (heating, cooling, etc). The main differing characteristic between a flask and a beaker is that beakers have straight sides, rather than slanted sides like a flask.
When should you use an Erlenmeyer flask instead of a beaker?
Erlenmeyer flasks and beakers are used for mixing, transporting, reacting, and filtration but not for accurate measurements. The volumes stamped on the sides are approximate and accurate to within about 5%. Beakers are used to contain volumes of liquids.
Can an Erlenmeyer flask be heated?
So, although Erlenmeyer flasks can be heated, they are not specifically designed for high temperature, constant heating applications. For this, you should use a boiling flask. This because his conical shape does not allow an uniform expansion and so the glass could break.
How do you store an Erlenmeyer flask?
Store According to Type
- Round-bottom flasks should be stored with cork rings to keep them upright.
- Burettes and pipettes should be stored vertically in specially-designed racks, or horizontally in drawers.
How do you maintain a round bottom flask?
Rinse first with water or neutralize any acid present to avoid vigorous reaction with the bath. Immerse the flask into the bath for a few hours to overnight and it should come out clean. Base bath will dissolve silicone grease. Leave it in too long and it will come out etched.
How do you store a volumetric flask?
Volumetric flasks should be stored with their stoppers as stoppers are easily lost and a volumetric flask is of no use without its correctly fitting stopper. Burettes and pipettes may be stored vertically in specially designed racks, or horizontally in drawers.
Can you heat volumetric flask?
Do not heat volumetric glassware (it will break if you do). Usually you can get around the problem of wet volumetric glassware by rinsing it with 4 or 5 small aliquots of the solution to be measured so the solution replaces the water. Beakers are roughly graduated and may be used for estimating the volume of a liquid.
Why should you never Heat heavy walled glassware directly with a flame?
Pyrex glassware is usually safe to heat but never apply the direct heat of a flame to heavy glassware such as volumetric flasks, burettes, graduated cylinders, bottles, and thermometers. Volumetric glassware will be permanently distorted from the calibrated volumes.
What does yellow flame indicate?
A yellow flame indicates improper adjustment and a possibility of excessive carbon monoxide. Do not use the oven as a source of heat.