Each has a unique form and purpose
- Beakers are the workhorse glassware of any chemistry lab. They come in a variety of sizes and are used for measuring volumes of liquid.
- There are multiple types of flasks. One of the most common in a chemistry lab is an Erlenmeyer flask.
- Test tubes are good for collecting and holding small samples. ...
What is a beaker and its function?
What is a beaker?
- Beaker characteristics. The beaker is cylindrical in shape and usually has a height greater than its diameter. ...
- Types of beakers. The following types of beakers are distinguished: the Griffin, the Berzelius, the crystallization and the Phillips.
- Uses and applications. ...
What is the purpose of a beaker?
The purpose of a beaker is to hold various types of liquids. A beaker often has a wide bottom and a narrow top. Beakers are typically used in laboratories and schools so that scientists and students are able to work with chemicals safely and easily. The types of beakers that scientists and students use are made from a special type of glass.
What is the function of a beaker?
What are the types of graduated cylinder?
- Different types of graduated cylinder: 10mL, 25mL, 50mL and 100mL graduated cylinder.
- A graduated Measuring Cylinder with a plastic Stopper.
- If the reading is done and the value calculated is set to be 40.0 mL.
- If the reading is done and the value calculated is set to be 36.5 mL.
What is the Beaker used for?
Beaker – A beaker is a glass container with a flat bottom and a small spout for pouring. It is used in the chemistry lab for mixing, heating, and stirring liquids. It is used in the lab for heating and sterilizing. How do you use a beaker? Pour liquid into the beaker; pour slowly to avoid splashing the liquid.
What is a beaker?
Why are beakers called beakers?
What are the markings on a beaker?
About this website
Beaker (laboratory equipment) - Wikipedia
In laboratory equipment, a beaker is generally a cylindrical container with a flat bottom. Most also have a small spout (or "beak") to aid pouring, as shown in the picture. Beakers are available in a wide range of sizes, from one milliliter up to several liters.A beaker is distinguished from a flask by having straight rather than sloping sides.
What Is the Erlenmeyer Flask Used For? - Reference.com
Kiran Foster/CC-BY-2.0. An Erlenmeyer flask is used for the storing and mixing of chemicals in a laboratory setting. It is one of the most common flasks used within laboratories.
What is graduated cylinder and its uses? - AskingLot.com
Click to see full answer. Keeping this in consideration, what are all the uses of a graduated cylinder? The graduated cylinder is used for measuring volumes (amounts) of liquids. This piece of equipment is used routinely, although it is only moderately accurate compared to other tools, such as volumetric flasks. Volumetric flasks are used when absolute precision (accuracy) is needed.
What is a beaker in a lab?
Beaker (laboratory equipment) In laboratory equipment, a beaker is generally a cylindrical container with a flat bottom. Most also have a small spout (or "beak") to aid pouring, as shown in the picture. Beakers are available in a wide range of sizes, from one milliliter up to several liters.
Why do beakers need to be covered?
However, when in use, beakers may be covered by a watch glass to prevent contamination or loss of the contents, but allowing venting via the spout. Alternatively, a beaker may be covered with another larger beaker that has been inverted, though a watch glass is preferable.
What is a flat beaker called?
Flat beakers (C) are often called "crystallizers" because most are used to perform crystallization, but they are also often used as a vessel for use in hot-bath heating. These beakers usually do not have a flat scale. The presence of a spout means that the beaker cannot have a lid.
How tall is a beaker?
Standard or "low-form" (A) beakers typically have a height about 1.4 times the diameter . The common low form with a spout was devised by John Joseph Griffin and is therefore sometimes called a Griffin beaker.
What does a 250 ml beaker mean?
Beakers are often graduated, that is, marked on the side with lines indicating the volume contained. For instance, a 250 mL beaker might be marked with lines to indicate 50, 100, 150, 200, and 250 mL of volume.
What is a beaker?
Indi Samarajiva/CC-BY 2.0. Beakers are a type of cylindrical container used to mix chemicals, liquids and other substances together for scientific testing. They are also used routinely in laboratory experiments to calculate the volumes of various liquids. However, beakers are not the primary choice for measuring in labs, ...
Why are beakers called beakers?
They are called beakers because of their small pour spouts, or beaks, located at the lip of each container.
What are the markings on a beaker?
Beakers contain markings on their sides to indicate different volume measurements, similar to common measuring cups. Because beakers can only provide a rough estimation, the preferred instruments of choice for obtaining precise scientific measurements are graduated cylinders and volumetric flasks. ADVERTISEMENT.
Overview
Construction and use
Standard or "low-form" (A) beakers typically have a height about 1.4 times the diameter. The common low form with a spout was devised by John Joseph Griffin and is therefore sometimes called a Griffin beaker. These are the most universal character and are used for various purposes—from preparing solutions and decanting supernatant fluids to holding waste fluids prior to disposal to p…
See also
• Beaker (drinkware)
• Beaker (archaeology)
• Beaker (disambiguation)
• Volumetric flask
• Stirring rod
Further reading
• ASTM E960 - 93 (2008) Standard Specification for Laboratory Glass Beakers
External links
• The dictionary definition of beaker at Wiktionary
• Media related to Beaker (glassware) at Wikimedia Commons