When would you use a volumetric flask instead of a graduated cylinder?
Table of Contents
- 1 When would you use a volumetric flask instead of a graduated cylinder?
- 2 Is a volumetric flask more accurate than a graduated cylinder?
- 3 Why is it better to use a volumetric flask?
- 4 Why does the volumetric flask need to be closed after the standard solution is prepared?
- 5 Why would you use volumetric flasks and volumetric pipettes as opposed to beakers and graduated cylinders to make your solutions?
- 6 Why are volumetric pipettes more accurate?
When would you use a volumetric flask instead of a graduated cylinder?
A volumetric flask should be used whenever an accurate concentration of solution is required. Graduated Cylinders are volumetric measuring devices designed to measure and deliver accurate volumes of liquids.
Is a volumetric flask more accurate than a graduated cylinder?
The volumetric flask is the most accurate, but it only measures 1 volume—in this case, 100mL. If you need to measure other volumes besides those on volumetric flasks, then the graduated cylinder is the best tool. The beaker is pretty accurate, and you can easily stir and heat chemicals in it.
Why is it better to use a volumetric flask?
A volumetric flask is used when it is necessary to know both precisely and accurately the volume of the solution that is being prepared. When used in conjunction with a pipet, a volumetric flask can be used to prepare a dilute solution from a more concentrated one. Figure 1: Image of a volumetric flask.
When would you use a volumetric flask to make solutions instead of a graduated cylinder and vice versa?
The volumetric flask is a flask that can be used to measure only specific volume. For example, 100 mL volumetric flask will measure only 100 mL. The measurement is very accurate. So, it is used to make a solution of a known concentration.
In what situation do you use a volumetric flask conical flask pipette and graduated cylinder?
Conical flask- Conical flasks can measure up to 10ml of volume. They are used in titration. Pipette- Used in titration, they are very accurate and can measure volume in as little as 1ml. Graduated cylinders- They are used to contain liquids.
Why does the volumetric flask need to be closed after the standard solution is prepared?
When a standard solution is prepared from a solid sample, it is not dissolved in a volumetric flask but in another container. Because the volume may change at mixing of a sample and a solvent, the sample should not be diluted directly to the marked line without stopping.
Why would you use volumetric flasks and volumetric pipettes as opposed to beakers and graduated cylinders to make your solutions?
Volumetric Glassware Graduated cylinders, beakers, volumetric pipets, burets and volumetric flasks are five kinds of glassware often used to measure out specific volumes. Volumetric pipets, flasks and burets are the most accurate; the glassware makers calibrate these to a high level of accuracy.
Why are volumetric pipettes more accurate?
The main advantage of a volumetric pipette is its accuracy. It is especially precise when it is delivering solutions, as another advantage of the standard build is its narrow neck. This allows for the meniscus to be read more accurately, and therefore deliver more precise results than graduated pipettes.
Why do we need to calibrate volumetric glassware?
Volumetric glassware calibration is essential to ensure accurate results in all laboratory settings. Calibration takes place before glassware is put into circulation for use, and there are also recommended timeframes to conduct calibration on older glassware.
What situation uses volumetric flask?
A Volumetric flask is used in laboratories for measuring exact volumes of liquids and preparation of solutions or mixtures. Conical flasks are used for storage of liquids. Pipette is used for transferring solution from one flask to another.