honors chemistry- lab equipment

quizlet wouldn't let me add definitions on the front

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beaker

beaker definition

• hold approx. amounts of liquids/sometimes solid

• no specific

• heat liquids

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erlenmeyer flask

erlenmeyer definition

• narrow container to transport, heat, store substance

• use stopper

• heat liquid, avoids splattering

• approx measurements

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florence flask

florence flask definition

• round flask to hold and heat liquids (for distillation)

• usually not graduated

• opening sig. narrow than base

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volumetric flask

volumetric flask definition

• contains precise volume at certain temp. precise dilutions to create standard solutions

• etched line around middle

• thin neck

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electronic balance

electronic balance definition

• determine mass of an object

• remember to report ALL digits on the screen

• 0= tray thing is on

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analytical balance

analytical balance definition

• determine mass of an object AT A HIGH PRECISION

• all windows closed to eliminate error

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graduated cylinder

graduated cylinder definition

• glassware to measure very specific amounts of liquids

• plastic ring around top to prevent breaking when knocked over

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meniscus

meniscus definition

• bottom of curved liquid level of a graduated cylinder

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burette

burette definition

• measuring very specific amounts of liquids

• release small amounts into other solutions (acids/bases)

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ruler/meter stick

ruler definition

• determine length of an object'

• start at 0, be precise with sig figs

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ring stand

ring stand definition

• supports bunsen burner, iron ring, pipestem, etc while heating substance

• heavy metal base with pole

• make sure it is properly screwed in

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metal/iron ring

metal ring definition

• supports beaker over bunsen burner

• wire gauze placed on top

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pipestem/clay triangle

pipestem definition

• supports crucible over open flame

• triangle of intertwined wires, clay slid over

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crucible and lid

crucible definition

• small porcelain cup and lid to heat small amounts of materials directly over flame

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wire guaze

wire gauze definition

• metal mesh over ring, suspending glassware over burner

• used to diffuse heat from flame or set hot objects on

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ring stand test tube/utility clamp

utility clamp definition

• hold a test tube etc in place on ring stand

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watch glass

watch glass definition

• keep liquids in beaker from splattering

• perform small reaction in beaker (don’t have to transer)

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bunsen burner

bunsen burner definition

• uses natural gas (methane) to heat various materials

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beaker tongs

beaker tongs definition

• transport hot beaker

• special coating on outside (flammable) to hold materials

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crucible tongs

crucible tongs definition

• metal tongs to hold crucible

• hold other objects, transfer things into or out of a flame

• no coating

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evaporating dish

evaporting dish definition

• evaporate excess solvents or liquids to create a more concentrated solution

• small porcelain bowl with spout

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wash bottle

wash bottle definition

• wash down specific equipment/keep materials moist

• filled with distilled water

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pipette (mircropipet)

pipet definition

• measure/dispense very small amounts of liquids

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hot plate

hot plate definition

• consistent uniform heat, heat substances that may be flammable

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burette clamp

burette clamp definition

• clamp attacked to ring stand to hold burettes

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striker

striker definition

• flint and metal file

• friction and heat ignite flint, ignites bunsen burner

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glass stirring rod

glass stirring rod definition

• long glass tube to stir solutions

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safety goggles

safety goggles

• PPE to cover eyes/prevent something from getting in them

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gas collecting bottle

gas collecting bottle

• bottle used to collect gases during experiment; through water displacement

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test tube

test tube definition

• hold small amounts of liquids for mixing/heating

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test tube holder (NOT CLAMP)

test tube holder definition

• holds test tube

• NOT A CLAMP

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test tube brush

test tube brush definition

• clean inside of test tubes or graduated cylinders

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test tube rack

test tube rack defenition

• holds many test tubes with solutions/solids or drying

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medicine dropper

medicine dropper definition

• glass/plastic tube with rubber bulb to obtain small amounts of liquids

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foreceps

forceps definition

• small metal equipment to hold small objects when you can’t use your hands

• similar to tweezers

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weighing boat

weighing boat definition

• small thin plastic pan to weigh solids/powders

• flexible and disposible

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spot plate/microwell plate

spot plate definition

• flate plate with small openings/wells

• mix small amounts of chemicals together and comparing results

• microchemistry

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stopper (rubber/cork)

stopper definition

• used to seal or stop test tubes or flasks

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funnel

funnel definition

• used to pour liquids into containers with small openings

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spatula

spatula definition

• used to measure/remove small amounts of solids or powders

• while obtaining mass

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scoopula

scoopula definition

• used to scoop relatively large amounts of solids and powders

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pressed fiber pad

pressed fiber pad definition

• usually in square fiber pad providing surface for materials to rest so they don’t touch counter

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mortar and pestle

mortar and pestle definition

• used to grind chemicals into powders