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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.
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What precise volumetric equipment is used in titrations?
In titrations, precise volumetric equipment like burettes and volumetric flasks are commonly used. Burettes are used to deliver precise volumes of titrant, while volumetric flasks are used to prepare accurate standard solutions or to collect titrated solutions for analysis.
What are the two names of Science Flasks?
Erlenmeyer Flask & Volumetric Flask.
What are the disadvantages of volumetric flasks?
volumateric flask is also a type of flask
What is difference between erlenmeyer flask and volumetric flask?
Erlenmeyer flasks have a conical shape with a narrow neck, used for mixing, heating, and storing liquids. Volumetric flasks have a flat bottom with a long neck and a specific volume graduation mark, used for making precise volume measurements and preparing solutions.
Why are volumetric flasks not put into the drying oven?
Because your teacher will probably have a fit. In the old days, you could put volumetric flasks into a drying oven, but you couldn't take volumetric flasks out of a drying oven... the heat would warp the glass slightly and introduce error into the calibration mark, so the flasks would not actually be volumetric anymore. However, borosilicate glass (Pyrex and the like) is much less heat-sensitive, and studies have shown that there's no discernable change in the capacity of borosilicate flasks even after repeated exposure to temperatures considerably higher than those normally found in a drying oven. So, aside from the aforementioned fit, there's no real reason not to do it as long as you're using borosilicate glass flasks.
Precise volumetric equipment used in titrations?
Some examples of precise volumetric equipment used in titrations include burettes, pipettes, and volumetric flasks. These tools are calibrated to accurately measure and deliver specific volumes of liquids in a controlled manner, ensuring the precision of titration results.
What is a narrow-mouthed container used to transportheatvor store substances often used when a stopper is a requierd?
A narrow-mouthed container used to transport or store substances, often requiring a stopper, is called a flask. Flasks are commonly used in laboratories for holding liquids and can come in various forms, such as volumetric flasks or Erlenmeyer flasks. Their design allows for easy mixing and minimizes evaporation or contamination.
What piece of glassware is used to prepare very accurate concentrations of chemical solutions?
A volumetric flask is typically used to prepare accurate concentrations of chemical solutions due to its precise volume measurements. Volumetric flasks are designed to hold a specific volume of liquid at a specific temperature, making them ideal for preparing solutions with precise concentrations.
What is a flask and its uses?
Volumetric flask, also known as measuring flask or graduated flask, is a kind of glassware which is used for accurate dilutions and preparation of standard solutions. Volumetric flasks are usually pear-shaped with a graduation mark on the neck. The mark indicates the volume when the solution reaches there. Volumetric flasks are various in size, but they come in standard size, 10.00 ml, 25.00 ml, 50.00 ml, 100.0 ml, 250.0 ml, 500.0 ml, etc.
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.
Is it safe to autoclave a volumetric flask?
No, it is not safe to autoclave a volumetric flask as the high temperature and pressure in an autoclave can damage the flask's accuracy and calibration markings. It is recommended to clean volumetric flasks using alternative methods such as washing with detergent and disinfecting with ethanol or bleach.
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.
