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Electronic Balance

Date post: 02-Feb-2016
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Electronic Balance. Important: Easily broken by placing too much mass on the pan. Use: to mass less than 200 grams of a substance. Material: metal with porcelain top. Hot Plate. Use: to heat substances when a burner is not necessary or safe. Sometimes may have a magnetic stirrer as well. - PowerPoint PPT Presentation
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Electronic Balance Use: to mass less than 200 grams of a substance Importan Importan t: t: Easily Easily broken broken by by placing placing too much too much mass on mass on the pan the pan
Transcript
Page 1: Electronic Balance

Electronic Balance

Use: to mass less than 200 grams of a substance

Important:Important:Easily Easily broken by broken by placing too placing too much mass much mass on the panon the pan

Page 2: Electronic Balance

Hot Plate

Use: to heat substances when a burner is not necessary or safe. Sometimes may have a magnetic stirrer as well.

Material: metal with porcelain top

Page 3: Electronic Balance

Safety Goggles

Material: plastic, splash resistantUse: to be worn at all times during labs in which chemicals, heat or glassware is used.

Page 4: Electronic Balance

Filter Paper

Material: paper circles, various sizesUse: folded in quarters, used in funnels to filter solutions

Page 5: Electronic Balance

Mortar and Pestle

Material: porcelainUse: to grind crystals and lumpy chemicals to a powder

Page 6: Electronic Balance

Weighing Trays or Weigh Boats

Material: Flexible plastic in various sizesUse: to keep chemicals off the balance pan.

Page 7: Electronic Balance

Scoopula

Material: Metal or metal with wood handleUse: to transfer solid chemicals

Page 8: Electronic Balance

Thermometer

Material: alcohol (red) or mercury in glass (not likely), common range -10°C to 110°CUse: to measure temperature

Important:Important:Never use as a stirring rodNever use as a stirring rod

Page 9: Electronic Balance

Pipet

Material: glass or plastic, graduated, various sizes Use: to measure solution volumes, less accurate than a volumetric pipet

Important:Important:Never pipet by mouthNever pipet by mouth

Page 10: Electronic Balance

Pipet Safety Bulb

Material: rubberUse: to fill a pipet with solution

Important:Important:Never pipet by mouthNever pipet by mouth

Page 11: Electronic Balance

Stirring Rod

Material: solid glass or plasticUse: to stir solutions

Page 12: Electronic Balance

Don’t be confused!

Page 13: Electronic Balance

Crucible and cover

Material: porcelainUse: to heat small amounts of solid substance at high temperatures

Important:Important:Use tongs with hot cruciblesUse tongs with hot crucibles

Page 14: Electronic Balance

Crucible tongs

Material: iron, nickel or brassUse: to pick up and hold small usually very hot items

Important:Important:beware of hot porcelain beware of hot porcelain or glasswareor glassware

Page 15: Electronic Balance

Clay triangle

Material: wire frame with porcelain supportsUse: used to support a crucible

Page 16: Electronic Balance

Transfer Pipet

Material: plasticUse: to dispense and transfer small volumes of solution

Page 17: Electronic Balance

Beral pipet - thin stem

Material: plasticUse: to dispense and store small quantities of solution

Page 18: Electronic Balance

24-well spot plate

Material: plastic, may have coverUse: reaction vessels for small quantities of solution

Page 19: Electronic Balance

96-well spot plate

Material: plasticUse: in place of test tubes in microchemistry

Page 20: Electronic Balance

Bunsen burner and burner tubing

Use: to heat chemicals (dry or in solution) in beakers, test tubes, flasks and crucibles

Material: metal, connected to gas supply with burner tubing

Page 21: Electronic Balance

Striker

Material: metal with flintUse: to create a spark to light gas burners

Page 22: Electronic Balance

Wire gauze or wire mesh

Material: metal mesh, may have ceramic centerUse: to spread the heat of a burner flame

Page 23: Electronic Balance

Watch glass

Material: glassUse: to cover an evaporating dish or beaker

Page 24: Electronic Balance

Test tube clamp or test tube holder

Material: metal spring mechanismUse: to hold test tubes or glass tubing

Page 25: Electronic Balance

Test tube

Material: glass, various sizesUse: reaction vessel, may be heated

Important:Important:Beware of hot glass. Use a Beware of hot glass. Use a test tube holder when test tube holder when heating. Never point a test heating. Never point a test tube at yourself or other tube at yourself or other when heating.when heating.

Page 26: Electronic Balance

Test tube rack

Material: wood, plastic or metalUse: holds test tubes in a vertical position

Page 27: Electronic Balance

Test tube brush

Material: bristle with wire handle, various sizes Use: to scrub small diameter glassware

Page 28: Electronic Balance

Utility clamp

Material: metal, with or without coated endsUse: to support equipment on a ring stand, this one would need a clamp holder as well

Page 29: Electronic Balance

Ring clamp and clamp holder

Material: metal Use: as a support on a ring stand

Page 30: Electronic Balance

Ring clamp - one piece

Page 31: Electronic Balance

Funnel

Material: glass or plasticUse: Hold filter paper for filtering solutions

Page 32: Electronic Balance

Wash bottle

Material: flexible plasticUse: hold vertically and squeeze sides to dispense water, typically deionized water only

Page 33: Electronic Balance

Graduated cylinder or graduate

Material: glass or plastic, various sizesUse: to measure approximate volumes

Important:Important:Never heatNever heat

Page 34: Electronic Balance

Erlenmeyer flask

Material: glass, various sizesUse: may be heated, useful for swirling solutions, used in traditional titrations

Page 35: Electronic Balance

Volumetric flask

Use: for making and storing solution. The score on the neck indicates an accurate volume.

Material: glass or plastic, various sizes

Page 36: Electronic Balance

Beaker

Material: glass or plastic, various sizesUse: for holding solutions or dry chemicals, not for measuring, only gives approximate volume

Important:Important:Beware of hot glass, use tongsBeware of hot glass, use tongs

Page 37: Electronic Balance

Beaker tongs

Material: metal with or without rubber coated tipsUse: to move hot beakers and glassware

Page 38: Electronic Balance

Evaporating dish

Material: porcelainUse: to contain small volumes of liquid being heated or evaporated. May be heated.

Page 39: Electronic Balance

Ring Stand

Separatory Funnel

Glass or plastic with stopper and stopcockUsed to separate solutions of different phases

Metal rod fixed upright in a heavy metal baseUsed to support a variety of clamps

Page 40: Electronic Balance

Buret

Double buret clamp

Stopcock

Material: glass with stopcock, graduated, VERY EXPENSIVEUse: to measure volumes of solution in titrations

Material: metal or plasticUse: to support burets on a ring stand

Page 41: Electronic Balance

Fleaker

Page 42: Electronic Balance

Erlenmeyer flask

Page 43: Electronic Balance

Beaker(s)

Page 44: Electronic Balance

96-well spot plate

24-well spot plate


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