0
Several things make volumetric flasks the most accurate way to measure volumes of liquids. First, they are specially calibrated and tested so that the volume listed is exactly the correct volume, often to within 0.01 mL. Secondly their shape is specially designed for accurate measurement. They have a long narrow neck with a line to mark the correct volume. Because the neck is so skinny, the water level is much more sensitive to the amount of water than if the neck was much wider (like in an erlenmeyer).
Note that an erlenmeyer flask is about the worst thing I can think of to measure volumes! Much better than that is a graduated cylinder. A graduated cylinder, while somewhat less accurate than a volumetric flask does have the advantage of being able to measure different volumes, whereas a volumetric flask is designed to measure one and only one volume.
Wiki User
∙ 16y ago
Wiki User
∙ 9y agoErlenmeyer flasks and beakers are used for mixing, transporting, and combining chemicals, rather than for measuring. Experiments have shown though, that beakers are more accurate than flasks.
Wiki User
∙ 13y ago1. pipettes (different types),
2. volumetric flasks,
3. graduated cylinders,
4. graduated beakers
Add your answer:
Earn +20 pts
Which vessel is more appropriate for mixing by swirling a beaker or an erlenmeyer flask?
The Erlenmeyer flask's narrow neck allows more vigorous swirling without as much chance of spilling as with a beaker or other wide mouth vessel.
Is a beaker used to measure volume?
No, a beaker is a poor choice of instrument to measure volume. Instead try a graduated cylinder. Generally, the smaller the diameter of graduated cylinder, the more accurate it will be. A grad cylinder will have the increments written up along the side with carefully placed "hash marks" indicating the volume of substance/solution in the cylinder. A breaker may have a few markings indicating the volume of the contents up the side, but not enough make it an accurate measuring device for varying volumes of liquid.
What tools do scientists use to enhance their observational techniques?
Answerpencil and paper,Erlenmeyer flask, test tube, over flow can, test tube holders, test tube rack, Bunsen burner, tripod, safety goggles, safety gloves, safety apron, particle excel-orator, and much much more!
Round flask with long neck?
You could be referring to a florence flask or a volumetric flask.See the Related Questions links to the left for more information.
What is the use of graduate cylinder?
A graduated cylinder is a piece of laboratory glassware used to accurately measure out volumes of chemicals for use in reactions. They are generally more accurate and precise for this purpose than beakers or erlenmeyer flasks, although not as precise as a volumetric flask or volumetric pipet. They come in a variety of sizes for different volumes, typically 10 mL, 25 mL, 50 mL, or 100 mL and up to as large as 1 or 2 liters.
Which vessel is more appropriate for mixing by swirling a beaker or an erlenmeyer flask?
The Erlenmeyer flask's narrow neck allows more vigorous swirling without as much chance of spilling as with a beaker or other wide mouth vessel.
What instrument which would be more accurate for measuring the volume of a liquid?
A graduated cylinder is utilized to get a more precise measurement of the volume of a liquid. They're also known as measuring cylinders.
What is the best piece of lab equipment for holding 50 ml of boiling water?
A beaker or erlenmeyer flask or round bottom flask.See the Related Questions for more information.
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 is an Erlenmeyer flask used for in chemistry?
Physical DescriptionAn Erlenmeyer Flask (named after Emil Erlennmeyer) is a common piece of laboratory glassware since 1861. It is also known as as a conical flask or E-flask. It has a conical body, flat base and a narrow cylindrical neck. The flask is usually marked to indicate the approximate volume of their contents.The flask is chosen to replace a beaker if there is a need to stopper the contents. The narrow neck is sized to accept standard rubber stoppers or corks.The conical shape and narrow neck facilitates stirring by swirling.The small neck reduces evaporative losses. The neck may be fitted with side tubes to allow the extraction of produced gasesThe flat bottom improves stability on lab benches. A Florence flask has a similar overall use but is more unstable because the body is round and the base is smaller.UsesErlenmeyer flasks are used for:pH titrationsthe preparation of mixtures which must be mixed without stirringDisadvantages:The Erlenmeyer is often stirred with a glass rod even though swirling is more often suggested. Inexperience students often do this while holding the flask at near eye level. A tap with the rod will knock the bottom off dumping the (usually nasty poisonous, hot and corrosive) contents all over the students legs.Erlenmeyer flasks are used to measure, mix, and store liquids.
What makes a type of glassware more or less accurate?
volumetric flask
What is the different between conical flask and volumetric flask?
They both do something :)
Can a flask perform accurate measurements?
It depends on what flask and what the quality of it is. If there is a hole in the flask, then obviously, no measurements. Most of the time, flasks do NOT give the most accurate measurements. Although, they do give more accurate measurements than a human eyeball and flasks do have their strengths compared to other tools as well.
What is a scientific flask?
A flask is basically same as a bottle In chemistry sometime it could mean a thin glas bottle in some different shapes i.e. E-flask (Erlenmeyer flask) with a flat bottom Peter the Viking
What are the uses of Erlenmeyer flask?
Physical DescriptionAn Erlenmeyer Flask (named after Emil Erlennmeyer) is a common piece of laboratory glassware since 1861. It is also known as as a conical flask or E-flask. It has a conical body, flat base and a narrow cylindrical neck. The flask is usually marked to indicate the approximate volume of their contents.The flask is chosen to replace a beaker if there is a need to stopper the contents. The narrow neck is sized to accept standard rubber stoppers or corks.The conical shape and narrow neck facilitates stirring by swirling.The small neck reduces evaporative losses. The neck may be fitted with side tubes to allow the extraction of produced gasesThe flat bottom improves stability on lab benches. A Florence flask has a similar overall use but is more unstable because the body is round and the base is smaller.UsesErlenmeyer flasks are used for:pH titrationsthe preparation of mixtures which must be mixed without stirringDisadvantages:The Erlenmeyer is often stirred with a glass rod even though swirling is more often suggested. Inexperience students often do this while holding the flask at near eye level. A tap with the rod will knock the bottom off dumping the (usually nasty poisonous, hot and corrosive) contents all over the students legs.Erlenmeyer flasks are used to measure, mix, and store liquids.
Use of erlenmeyer flask?
Physical DescriptionAn Erlenmyer Flask (named after Emil Erlennmeyer) is a common piece of laboratory glassware since 1861. It is also known as as a conical flask or E-flask. It has a conical body, flat base and a narrow cylindrical neck. The flask is usually marked to indicate the approximate volume of their contents.The flask is chosen to replace a beaker if there is a need to stopper the contents. The narrow neck is sized to accept standard rubber stoppers or corks.The conical shape and narrow neck facilitates stirring by swirling.The small neck reduces evaporates losses. The neck may be fitted with side tubes to allow the extraction of produced gasesThe flat bottom improves stability on lab benches. A Florence flask has a similar overall use but is more unstable because the body is round and the base is smaller.UsesErlenmeyer flasks are used for:pH tit rationsthe preparation of mixtures which must be mixed without Starr
Why is the conical flask only rinsed with distilled water in the titration procedure?
Yes. By adding water to rinse, you will be changing the concentration of the thing you are titrating, and so your calculation will be off. If you have material on the walls of the flask, just gently stir the flask and let the solution in the flask wash anything off the walls. I do not believe this is true. Once you add an amount of reactant into your flask adding more water will not change the number of moles of reactant that are present in the flask. The titrant will react in the mole ratio for that particular reaction so water doesn't play a role. You can rinse the flask and even use water to get part of a drop into your flask for a more accurate titration.
