What are advantages of an Erlenmeyer flask?
Erlenmeyer flasks are great for mixing chemicals since they have a wide base and can be swirled around without spillage. Since the base is wide, there is less danger of the liquid rising to the top and spilling out. The Erlenmeyer filter flask also has the advantage of avoiding tipping over.
Why is an Erlenmeyer flask the best flask for a titration?
The unique shape of the Erlenmeyer flask, with it’s angled sides, and slim neck allow liquids to be mixed by swirling without risk of spiling the contents. This ability makes them suitable for titrations by positioning it below a burette. Erlenmeyer flasks can also be used to perform boiling reactions.
Why is the Erlenmeyer flask more reliable than a beaker?
Flasks are normally the site of chemical reactions, for the reaction can take place in the large vessel and have low risk of spilling due to the long, narrow neck of the flask. Furthermore, flasks have the ability to be capped or corked, therefore solutions can be held for long periods of time without risk of spilling.
What is the difference between Erlenmeyer flask and volumetric flask?
Volumetric flasks have a very long thin neck and a bulbous bottom with one graduation mark. Beakers have a short, wide, cylindrical shape with multiple graduations. Erlenmeyer flasks, also known as conical flasks, have a flat base, a conical body, and a thin short neck.
Are Erlenmeyer flasks accurate?
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%.
Can you boil in an Erlenmeyer flask?
In chemistry
Such features similarly make the flask suitable for boiling liquids. Hot vapour condenses on the upper section of the Erlenmeyer flask, reducing solvent loss.
Which is the most common use of an Erlenmeyer flask?
The Erlenmeyer flask is named for Emil Erlenmeyer (1825–1909), a German organic chemist who designed the flask in 1861. The flask is often used for stirring or heating solutions and is purposefully designed to be useful for those tasks.
When would you use an Erlenmeyer flask?
Erlenmeyer flasks are used to contain liquids and for mixing, heating, cooling, incubation, filtration, storage, and other liquid-handling processes. Their slanted sides and narrow necks allow the contents to be mixed by swirling without the risk of spills, which is useful for titrations and for boiling liquids.
Is Erlenmeyer flask accurate?
Why are volumetric flasks more expensive than Erlenmeyer flasks?
Why are volumetric flasks more expensive than Erlenmeyer flasks? Volumetric flasks are made of high quality glass. Erlenmeyer flasks are made from poor quality, recycled materials. Volumetric flasks are designed for highly accurate measurement of one specific volume.
Can I use Erlenmeyer flask on the stove?
If you have an electric stove that has coils embedded under a glass cook top, you are good to go. I have been using some flasks this way for years not worries. I do let it cool a little bit off the burner before dumping it ice cold water. Even the best labware tends to weaken with such an extreme swing in temp.
Can you put an Erlenmeyer flask on the stove?
Re: Directly heating Erlenmeyer flasks
I have a glass cooktop on my stove and boil every yeast starter on it. No issues.
Why are volumetric flasks more expensive than Erlenmeyer flasks quizlet?
Why are volumetric flasks more expensive than Erlenmeyer flasks? Volumetric flasks are made of high quality glass.
Can you boil water in a Erlenmeyer flask?
Using them in this way may well lead to cracking, fracturing or worse, and is unsafe. 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.
Can Volumetric Flasks be heated?
5. The volumetric flask cannot be heated. If the solute releases heat during the dissolution process, the solution should be cooled after the solution is cooled, because the general volumetric flask is calibrated at a temperature of 20 ° C.
Which of the following is the most accurate device for measuring liquids quizlet?
Which is more accurate for measuring liquid volume, a beaker or a graduated cylinder? Why? For more precise answers, a graduated cylinder would be more reliable than using a beaker because a graduated cylinder has more lines of measurement than a beaker, which offers more precise readings.
Can you boil water in an Erlenmeyer flask?
Which two tools are most accurate for measuring liquid volumes?
Volumetric flasks, burettes, and pipettes made for measuring small amounts of liquid are the most accurate, with tolerances of less than ±0.02. Research and testing require precise measurements, and many lab vessels are even designed to account for the liquid residue that clings inside a flask.
Which instrument is the least accurate measuring volume?
Terms in this set (6)
- Beaker. the least accurate instrument for measuring volume (5% accuracy)
- Erlenmeyer Flask. used to measure approximate volumes, mixing, and sample storage (5% accuracy)
- Graduated cylinder. used to measure the volume of a liquid (1% accuracy)
- Volumetric Flask.
- Buret.
- Volumetric Pipette.
Can you put an Erlenmeyer flask on a hot plate?
Beakers and Erlenmeyer flasks can be heated directly on a hot plate. These containers have a flat bottom and heat will be spread evenly throughout the solution when the solution is also stirred. Other containers that do not have a flat surface should be heated indirectly.
Is an Erlenmeyer flask precise?
Which container gives the most accurate volume readings for a liquid and why?
A graduated cylinder is the most precise for measuring the volume of a liquid. There are other devices such as burets and pipettes that offer precise measurements, but they are used to deliver liquids.
How accurate is an erlenmeyer flask?
What is the most accurate tool to measure volume?
Volumetric flasks, burets and pipets are the most accurate with tolerances of less than 0.2%. To achieve these accuracies the person using the device needs to use the proper technique and the measurements need to made at the temperature for which the glassware was calibrated (usually 20 degrees C).
Which apparatus is best to use in measuring volume of liquid?
Among the following, graduated cylinder is the best suited for accurately measuring the volume of a liquid. Using graduated cylinder reduces the error in the measurement of volume of liquid.