Escribe the use of various common laboratory tools

Beakers are available in a wide range depending on their sizes, such as 50cm3, cm3, cm3, or cm3 are available. Have you ever needed to grab something hot? Or pick up a beaker that is heavy and full of liquid? If so, then these beaker tongs are perfect for your needs! They are made out of stainless steel with silicone grips at the ends. These tongs will allow you to safely handle anything in your lab without getting burned or spilling your experiment!

It is also known as a Conical Flask. The Erlenmeyer flask was titled in , after its inventor. It has a slim neck and widens toward its base. This allows easy swirling and mixing of the flask without too much possibility of spilling. The narrow opening also allows the use of a glass or rubber stopper.

It can comfortably be clamped to a ring stand as well as shaken or heated easily. Once again, the numberings on the side are meant mainly for estimation not for precision. Safety Tip: A significant safety tip here is to never heat the flask while it is covered. This causes pressure build-up that results in an explosion. A lab funnel is also like any other funnel but it was specially designed to be used in a laboratory. They are made up of glass or plastic and have either a long stem or a short stem, depending on the purpose, they are needed for.

There are a lot of sizes that can be chosen depending upon the amount of liquid that needs to go through them easily and quickly. Funnels are of different sizes 3cm, 5cm, 8cm etc. It is a small dish made of porcelain used for evaporating and concentrating the dilute solutions. It is available in different sizes. This is an essential measuring tool for the volume of any liquid. There are a lot of markings, up and down the whole length of the container with special increments.

Graduated cylinders are of many sizes. The smaller they are in size or diameter, the more exact or accurate the volume measurements will be. When reviewing the volume from a graduated cylinder, you will consider that the liquid seems to have some indentation. The liquid around the edges of Graduated Cylinders will be higher than the liquid in the center. This is known as a meniscus. Keep the cylinder at a leveled surface to properly read the volume.

They are also available in different sizes 5cm3, 10cm3, 20cm3, 50cm3, cm3 and cm3. A stirring Rod or glass stirring rod is used for mixing and stirring different chemicals. Stirring Rods are often 10 to 45 cm long with almost a half-centimeter in diameter. A volumetric flask is a round flask with a flat bottom and long neck.

Volumetric Flask is used to measure the exact volume of liquids. There is a short line on the neck that hints at how far to fill the flask. Special caps are available that will not let anything in or out through the flask. These are available in different sizes i. Just Remember: The temperature affects the volume; therefore always avoid using liquids that will vary in temperature for example hot water that will cool.

Burets are often used for the addition of a precise and accurate volume of liquids. These are normally attached to a ring stand with a clamp.

A buret is also like a glass tube that is open from the top and becomes a narrow pointed opening at the bottom side. Right above the bottom opening; there is a stopcock. This stopcock can be turned to control the released amount of liquid. A clay triangle with an open center is used to suspend crucibles. Tongs and forceps are for grabbing things that should not be touched by hand.

Some tongs are specially made to hold beakers, others to hold test tubes, and so on. There are also general tongs. Forceps are used to grab small things like solid chemicals that are broken into chunks, so they can be safely handled and added to containers.

Three scoopulas on the left and a number of spatulas to the right. Spatulas and scoopulas are for scooping solid chemicals. They are typically used to scoop a chemical out of its original container onto a weigh boat so that it can be weighed on a balance.

A laboratory thermometer is used for measuring the temperature of liquids. It can be made of glass or it can be a thermocouple made of different metals. A Bunsen burner is a mechanical apparatus that is connected to a flammable gas source. There is a knob to adjust the amount of gas flow and a rotating collar that controls airflow. These both must be adjusted to get an ideal flame for heating purposes.

The burner is lit with a striker. A balance is used to weigh chemicals. The chemicals are always in some form of container and never placed directly on the balance. It is important not to move a balance because they have been calibrated for the exact position they are in. Some balances have plastic housing with small doors to keep air currents from affecting the measurement.

Close these doors whenever the balance is in use. To use a balance to determine the weight of a chemical, first put the empty container that the chemical will be in on the balance. Once you have a reading, press the "tare" or "zero" button on the balance. Remove the container from the balance and add the chemical never add chemicals to a container while it is on the balance. Reweigh after adding the chemical to find the weight of only the chemical. Ummm, does anyone, know what a spill is, I need to find a piece of equipment called a spill, not what happens if you spill chemicals, an actual apparatus called a spill, Plz help.

Thank you so much for you help in show how you can practise you self at home during the pandemic of covid19 thank you so much. I liked the descriptions along with the actual names of the lab equipment.

Some information that I found here was not on other websites. Thank you! I do not think u are doing a good job especially for students ads r so not needed and related searches do not really relate so I think a change is needed as a student. Marine Biology. Electrical Engineering. Computer Science. Medical Science. Writing Tutorials.

Performing Arts. Visual Arts. Student Life. Vocational Training. Standardized Tests. Online Learning. Social Sciences. Legal Studies. Political Science. Read More From Owlcation. Beakers When you need to measure liquid to perform an experiment or chemical reaction, you can use special containers called beakers. They are wider and bigger than regular test tubes, and they have a flat bottom. Used to hold, mix, and heat liquids. A magnifying glass Microscopes can often be replaced with a magnifying glass.

Such common laboratory apparatus are popular in many homes. The glass can be used for reading directions written in tiny letters, viewing the smallest objects, etc. A dropper When you look at a dropper, you understand that each drop matters. This particular tool helps to add liquids or other solutions drop-wise, leaving no room for mistakes. Pipette This small glassware with a rubber end is used in medicine and laboratories. It measures a liquid substance and allows one to transfer liquids from bottles with small necks into a new container.

Used to draw liquids into a pipe. Thermometer This common laboratory equipment is well-known in each household. However, thermometers that are used for conducting tests and experiments are not home-like pieces even though they are also used to measure temperature. Stirring rod Liquids are often mixed in chemistry, but you cannot stir them with your finger.

Special stirring rods can help with mixing several liquids or heating them in the classroom or a workroom. Spring scales It is another laboratory apparatus used to measure the mass of objects.

Unlike beam balances, spring scales do not measure the material against another mass. Instead, it measures the distance when the material gets displaced due to its weight. A watch glass These pieces of laboratory equipment are used for chemical tests and in medical organisations. A watch glass is a square or circular surface that can hold samples of substance required for tests, weighing, heating, etc.

A wire gauze Made of thin metal and looking like a mesh, this equipment is designed to help to heat glassware that cannot be directly heated by the burner or flame.

It protects the glass tubes from being shocked by the fire and broken into pieces. A tripod Humans cannot carry the heated wire gauzes in hands. Thus, they need a piece of additional equipment that can perform this task.

A tripod is a stand with three legs that can support the heating wire gauze during experiments. Brushes for test tubes Every test tube needs to be cleaned after holding chemicals and substances. Test tube brushes are additional laboratory equipment that resolve cleaning problems. Crucible Tongs Used to hold crucibles.