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Lab Equipment Page 1 of 6

Lab Equipment

These GOGGLES are used to protect A WATCHGLASS can be used as a beaker cover, but your eyes from broken glass, chemicals you can also place small amounts of chemicals on it and and flames. then heat it (for example, to evaporate some water from a wet chemical).

A is used with to "A" is the STIRRING ROD, which is used to stir remove undissolved solids from a liquid combinations of chemicals. You can also pour liquid mixture. It also can be used to help pour down along it (as you pour it into another container) to a liquid into a container that has a small keep it from splashing out. "B" is the RUBBER opening (for example, a volumetric . It is put on the end of the stirring rod, and flask). it keeps the from scratching a glass beaker or other container.

The is used as a The CLAY TRIANGLE is a frame which can support a container for heating, usually when you container. For example, it can hold a during want to evaporate a liquid from some heating or can hold a funnel during filtering. chemicals.

This all-purpose can This BURET CLAMP is used to hold a buret. The clamp be used to hold many lab equipment is attached to a ring stand. items when it is attached to a ring stand. For example: test tubes, hoses, erlenmeyer flasks, burets.

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LAB TONGS can be used to hold or are designed up pick up and hold a pick up many items, but work best as crucible. tongs for picking up a hot evaporating dish.

BEAKER TONGS are best used to hold HOT HANDS are a chemist's "hot pot holder". They are a hot beaker. used to pick up hot glassware.

WIRE GAUZE can be used to support a The RING CLAMP is attached to the ring stand, and is container (such as a beaker or flask) used as a support. For example, it might be used to hold a during heating. When the funnel during filtering. flame is beneath it, the helps to spread the flame (and heat) out evenly over the container.

A CLAMP holds a test A RUBBER with no holes is used as a "plug" tube during heating. for a test tube or flask. When the stopper as a hole in it, a piece of tubing can be inserted in it (see "A" and "C").

A TEST TUBE is used as a container to A SPOT PLATE has a number of small "wells". hold chemicals during heating or other Chemicals are placed into the small wells, and the reactions, and the reaction can be observed as it takes place in the "well". supports the test tubes.

The BALANCE is used to measure the This is a close up of the numbers on the balance. mass of an object in grams.

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WEIGHING PAPER looks and feels is folded before it is used (folded into like waxed paper. It is used with the quarters). balance so that the chemicals are placed on the paper instead of directly on the balance.

FORCEPS are used to pick up small The CHEMICAL SPATULA is used to transfer items in the chemicals. Use these instead of your fingers!!

A is used to measure temperature. We use celsius in the chemistry lab. The PIPET BULB is used to fill a pipet with liquid.

A WASH is used to rinse Pipets are used to measure liquid. "A" is a glassware in the chemistry lab. It is NOT VOLUMETRIC PIPET. Volumetric pipets are used to used to rinse your eyes! measure one amount only. For example, a 25 mL volumetric pipet is used to measure 25 mL only, and no other amount. "B" is a GRADUATED PIPET. Graduated pipets have a lot of lines drawn on it so that you can measure many different amounts.

A is a glass The is a container which gives container. A mixture of liquids can be only approximate measurements of volume. It is usually poured into it and allowed to separate. used as a mixing vessel or a container for heating.

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The is used to hold This round-bottom flask is very similar to a florence a liquid during heating. flask.

The MORTAR is the dish, and the PESTLE is the grinder. They are used to The is used to measure the crush or grind up chemicals. volume of liquids in mL.

The BEAKER doesn't measure the The is used the measure one volume of liquids very accurately. It is specific volume of liquid (kind of like a volumetric usually used as a container for mixing or pipet). holding chemicals.

The HYDROMETER floats or sinks when placed into a liquid which is The CONDUCTIVITY TESTER is used to measure related to the density of the liquid. whether an object conducts electricity or not.

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The is a special type of The MAGNETIC STIR BAR is a magnet covered with funnel. teflon.

The FLINT LIGHTER is used to ignite The RING STAND offers the support, and the buret the flame of a BUNSEN BURNER. The clamp is holding a BURET (A) and a GAS gas collects inside the small cup, and the COLLECTION TUBE (B). Although these look very spark created ignites the gas. similar, the buret is a open at both ends. There is a valve at the bottom and it is used to dispense liquids (kind of like a drink machine at McDonalds). The gas collection tube is closed at the top so that gases can collect inside and we can measure the volume of gas.

The DROPPER PIPET is a medicine The RUBBER TUBING has a rubber stopper at one end dropper and just dispenses small drops and a PINCH CLAMP at the other end. The pinch clamp of liquid. can close the hose if necessary.

The CRUCIBLE and its COVER are FILTER PAPER is used to separate a mixture. It feels used to hold small amounts of chemicals like thick coffee filter paper and has very small holes in

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during heating at high temperatures, it. It is folded into a "cone" shape. especially if you want to keep oxygen out of the reaction (just put the cover on the crucible).

The FILTERING FLASK has a side-arm This is used as a heat source. which is connected to a low pressure source. This can speed of filtration.

CHROMATOGRAPHY PAPER is used to separate a mixture. It comes in rolls, but we use only short pieces.

http://www.geocities.com/~chemfun/unit1/labequipment/equipment.html 1/20/2007