Electronic Balance
Download
1 / 44

Electronic Balance - PowerPoint PPT Presentation


  • 102 Views
  • Uploaded on

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.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Electronic Balance' - ura


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Electronic balance

Electronic Balance

Important:

Easily broken by placing too much mass on the pan

Use: to mass less than 200 grams of a substance


Electronic balance

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.


Electronic balance

Safety Goggles

Material: plastic, splash resistant

Use: to be worn at all times during labs in which chemicals, heat or glassware is used.


Electronic balance

Filter Paper

Material: paper circles, various sizes

Use: folded in quarters, used in funnels to filter solutions


Electronic balance

Mortar and Pestle

Material: porcelain

Use: to grind crystals and lumpy chemicals to a powder


Electronic balance

Weighing Trays or Weigh Boats

Material: Flexible plastic in various sizes

Use: to keep chemicals off the balance pan.


Electronic balance

Scoopula

Material: Metal or metal with wood handle

Use: to transfer solid chemicals


Electronic balance

Thermometer

Important:

Never use as a stirring rod

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

Use: to measure temperature


Electronic balance

Pipet

Important:

Never pipet by mouth

Material: glass or plastic, graduated, various sizes

Use: to measure solution volumes, less accurate than a volumetric pipet


Electronic balance

Pipet Safety Bulb

Important:

Never pipet by mouth

Material: rubber

Use: to fill a pipet with solution


Electronic balance

Stirring Rod

Material: solid glass or plastic

Use: to stir solutions



Electronic balance

Crucible and cover

Important:

Use tongs with hot crucibles

Material: porcelain

Use: to heat small amounts of solid substance at high temperatures


Electronic balance

Crucible tongs

Important:

beware of hot porcelain or glassware

Material: iron, nickel or brass

Use: to pick up and hold small usually very hot items


Electronic balance

Clay triangle

Material: wire frame with porcelain supports

Use: used to support a crucible


Electronic balance

Transfer Pipet

Material: plastic

Use: to dispense and transfer small volumes of solution


Electronic balance

Beral pipet - thin stem

Material: plastic

Use: to dispense and store small quantities of solution


Electronic balance

24-well spot plate

Material: plastic, may have cover

Use: reaction vessels for small quantities of solution


Electronic balance

96-well spot plate

Material: plastic

Use: in place of test tubes in microchemistry


Electronic balance

Bunsen burner and burner tubing

Material: metal, connected to gas supply with burner tubing

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


Electronic balance

Striker

Material: metal with flint

Use: to create a spark to light gas burners


Electronic balance

Wire gauze or wire mesh

Material: metal mesh, may have ceramic center

Use: to spread the heat of a burner flame


Electronic balance

Watch glass

Material: glass

Use: to cover an evaporating dish or beaker


Electronic balance

Test tube clamp or test tube holder

Material: metal spring mechanism

Use: to hold test tubes or glass tubing


Electronic balance

Test tube

Important:

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

Material: glass, various sizes

Use: reaction vessel, may be heated


Electronic balance

Test tube rack

Material: wood, plastic or metal

Use: holds test tubes in a vertical position


Electronic balance

Test tube brush

Material: bristle with wire handle, various sizes

Use: to scrub small diameter glassware


Electronic balance

Utility clamp

Material: metal, with or without coated ends

Use: to support equipment on a ring stand, this one would need a clamp holder as well


Electronic balance

Ring clamp and clamp holder

Material: metal

Use: as a support on a ring stand



Electronic balance

Funnel

Material: glass or plastic

Use: Hold filter paper for filtering solutions


Electronic balance

Wash bottle

Material: flexible plastic

Use: hold vertically and squeeze sides to dispense water, typically deionized water only


Electronic balance

Graduated cylinder or graduate

Important:

Never heat

Material: glass or plastic, various sizes

Use: to measure approximate volumes


Electronic balance

Erlenmeyer flask

Material: glass, various sizes

Use: may be heated, useful for swirling solutions, used in traditional titrations


Electronic balance

Volumetric flask

Material: glass or plastic, various sizes

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


Electronic balance

Beaker

Important:

Beware of hot glass, use tongs

Material: glass or plastic, various sizes

Use: for holding solutions or dry chemicals, not for measuring, only gives approximate volume


Electronic balance

Beaker tongs

Material: metal with or without rubber coated tips

Use: to move hot beakers and glassware


Electronic balance

Evaporating dish

Material: porcelain

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


Electronic balance

Ring Stand

Glass or plastic with stopper and stopcock

Used to separate solutions of different phases

Separatory Funnel

Metal rod fixed upright in a heavy metal base

Used to support a variety of clamps


Electronic balance

Material: glass with stopcock,graduated,VERY EXPENSIVE

Use: to measure volumes of solution in titrations

Buret

Doubleburet clamp

Material: metal or plastic

Use: to support burets on a ring stand

Stopcock





96 well spot plate

24-well spot plate

96-well spot plate