honors chemistry- lab equipment

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86 Terms

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beaker

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beaker definition

  • hold approx. amounts of liquids/sometimes solid

  • no specific

  • heat liquids

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erlenmeyer flask

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erlenmeyer definition

  • narrow container to transport, heat, store substance

  • use stopper

  • heat liquid, avoids splattering

  • approx measurements

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florence flask

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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

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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

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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

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analytical balance definition

  • determine mass of an object AT A HIGH PRECISION

  • all windows closed to eliminate error

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graduated cylinder

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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

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meniscus definition

  • bottom of curved liquid level of a graduated cylinder

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burette

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burette definition

  • measuring very specific amounts of liquids

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

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ruler/meter stick

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ruler definition

  • determine length of an object'

  • start at 0, be precise with sig figs

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ring stand

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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

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metal ring definition

  • supports beaker over bunsen burner

  • wire gauze placed on top

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pipestem/clay triangle

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pipestem definition

  • supports crucible over open flame

  • triangle of intertwined wires, clay slid over

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crucible and lid

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crucible definition

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

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wire guaze

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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

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utility clamp definition

  • hold a test tube etc in place on ring stand

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watch glass

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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

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bunsen burner definition

  • uses natural gas (methane) to heat various materials

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beaker tongs

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beaker tongs definition

  • transport hot beaker

  • special coating on outside (flammable) to hold materials

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crucible tongs

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crucible tongs definition

  • metal tongs to hold crucible

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

  • no coating

41
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evaporating dish

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evaporting dish definition

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

  • small porcelain bowl with spout

43
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wash bottle

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wash bottle definition

  • wash down specific equipment/keep materials moist

  • filled with distilled water

45
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pipette (mircropipet)

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pipet definition

  • measure/dispense very small amounts of liquids

47
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hot plate

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hot plate definition

  • consistent uniform heat, heat substances that may be flammable

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burette clamp

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burette clamp definition

  • clamp attacked to ring stand to hold burettes

51
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striker

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striker definition

  • flint and metal file

  • friction and heat ignite flint, ignites bunsen burner

53
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glass stirring rod

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glass stirring rod definition

  • long glass tube to stir solutions

55
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safety goggles

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safety goggles

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

57
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gas collecting bottle

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gas collecting bottle

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

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test tube

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test tube definition

  • hold small amounts of liquids for mixing/heating

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test tube holder (NOT CLAMP)

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test tube holder definition

  • holds test tube

  • NOT A CLAMP

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test tube brush

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test tube brush definition

  • clean inside of test tubes or graduated cylinders

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test tube rack

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test tube rack defenition

  • holds many test tubes with solutions/solids or drying

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medicine dropper

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medicine dropper definition

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

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foreceps

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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

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weighing boat definition

  • small thin plastic pan to weigh solids/powders

  • flexible and disposible

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spot plate/microwell plate

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spot plate definition

  • flate plate with small openings/wells

  • mix small amounts of chemicals together and comparing results

  • microchemistry

75
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stopper (rubber/cork)

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stopper definition

  • used to seal or stop test tubes or flasks

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funnel

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funnel definition

  • used to pour liquids into containers with small openings

79
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spatula

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spatula definition

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

  • while obtaining mass

81
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scoopula

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scoopula definition

  • used to scoop relatively large amounts of solids and powders

83
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pressed fiber pad

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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

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mortar and pestle definition

  • used to grind chemicals into powders