Common Lab Equipment

• GRADUATED CYLINDER

  -measure volume of liquid

  -cylindrical narrow shape

  -Each marked line represents the amount of liquid that has been measured

  
• SYRINGE

  -frequent method

  -transfer liquid chemicals or solvents in the organic laboratory

  
• PIPETTE and MICROPIPETTES

  -measure and deliver accurate volumes of liquid

  A) measuring pipette

  B) volumetric pipette

  C) aspirator

  
• DIFFERENCE BETWEEN MICROPIPETTE & PIPETTE

  1. MICROPIPETTE- measure a much smaller volume starting at 1microliter
  2. PIPETTE- starts at 1 milliliter

  A) pipettor

  B) tips

  C) microwell plates

  
• BURETTE

  -volumetric measuring glassware

  -accurate dispensing of variable

  -measuring the volume of a liquid (especially one of the reagents in a titration

  -In titration of an acid and base solution, it can be filled with acid

  -allows the acid in the tube to be able to be added in a stream or by drop into flask

  A) ring stand

  B) erlenmeyer flask

  C) burette

  D) burette clamp

  E) titration

  
• BURETTE

  -can be glass or plastic straight tube with graduation scale

  -tip of burette, there are stopcock and valve that controls the flow of the chemical solution

  -barrel of stopcock can be made of glass (Acid burette) or ruber tube (alkali/base burette) or PTFE (PTFE burette)

  A) PTFE

  B) Acid

  C) alkali

  
• VOLUMETRIC FLASK

  -calibrated to contain a precise volume at a certain temperature

  -used for precise dilutions and preparation of standard solutions

  
• VOLUMETRIC FLASK

  
• TRIPLE BEAM BALANCE

  A) pan

  B) riders

  C) beams

  D) balance pointer

  E) counter weight

  F) base

  G) triple beam

  
• Quadruple beam balance

  A) Quadruple beam

  
• Platform Balance or Double Pan Balance

  A) set of weights

  B) platform balance

  C) double pan

  D) scale

  E) pointer

  F) adjustment knob

  G) beams

  H) standard masses

  I) stand

  J) riders

  
• DIGITAL BALANCE

  A) Analytical

  B) top loading

  C) analytical

  D) draft shield

  E) level indicator

  F) display

  G) level adjustment feet

  H) power button

  I) tare button

  J) balance pan

  K) door handle

  
• TEST TUBE

  -handle chemicals for qualitative experiments and assays

  -spherical buttom and vertical sides reduce mass loss when pouring & easy to wash out & monitoring of contents

  
• TEST TUBE RACK

  A) test tube rack

  
• TEST TUBE HOLDER

  
• TEST TUBE BRUSH

  -easily clean inside test tubes & other glasswares

  
• WATCH GLASS

  • surface to evaporate a liquid
  • to hold solids to be weighed
  • heating small amount of substance
  • cover for a beaker

  
• SPOT PLATE (reaction or culture plates)

  • perform reactions on small amount of chemicals
  • many depressions (wells) either 12 or 24
  • the wells function as tiny test tubes

  
• Petri Dish

  • culture different microorganisms and cells
  • study microorganisms (bacteria and viruses_
  • important to keep them isolated from other species or elements

  
• MICROWELL PLATE

  • flat plate with multiple wells used as small test tubes
  • used in analytical research and clinical diagnostic testing laboratories

  A) microwell

  
• BEAKER

  • hold and heat liquids
  • reaction vessel
  • hot water bath
  • heating liquid materials

  
• FLASKS - used as containers to hold liquids

  A) round bottom

  B) Erlenmeyer

  C) filtering

  D) volumetric

  E) florence

  F) distilling

  
• FLORENCE FLASK

  • for uniform heating, boiling, distillation, and ease of swirling
  • round body, long neck, and flat bottom

  
• ROUND BOTTOM FLASK

  • contrain chemical reactions used for reflex set-ups and laboratory-scale synthesis
  • more resistant to fracturing under vacuum
  • more evenly distributes stress across its surface

  
• REAGENT BOTTLES (Media bottles)

  • intended to contain chemicals in liquid or powder form for laboratories and stores in cabinets

  A) wide-mouthed reagent bottle

  B) narrow-mouthed reagent bottle

  C) amber reagent bottle

  
• VIAL

  • used to store medication as liquids, powders, or capsules
  • used as scientific sample vessels

  
• DISPENSING OF LIQUID MATERIALS

  A) dropper

  B) rubber bulb

  C) pasteur pipette

  
• DISPENSING OF LIQUID MATERIALS

  A) beral pipette

  
• CAPILLARY TUBE

  • thin tube made of plastic or glass
  • tubes to collect samples of liquids which will flow up into the tubes against the effects of gravity

  A) capillary tube

  
• WASH BOTTLE

  • to conveniently disinfect unneeded cultures
  • Squeeze bottle with nozzle
  • rinse pieces of lab glassware (test tube and round bottom flask)
  • may be filled with range of common laboratory solvents and reagents (acetone, isopropanol, ethanol, deionized water)
• FORCEPS

  • tweezers in org chem lab
  • grab small item tgat cannot be done with your fingers

  
• DISPENSING OF SOLID MATERIALS

  A) ceramic

  B) metal

  C) plastic

  
• GLASS TUBING

  • connect other pieces of lab equipment
  • can be cut, bent, and stretched for variety of uses

  
• FUNNEL

  • guiding liquid or powder into a small opening

  
• RUBBER TUBING

  • used in flow lines of fluids and gases
  • flexible and resilient due to its rubber construction

  
• THERMOMETER

  A) Digital

  
• PH METER

  • used to calculate the pH (Acidity or alkalinity) of a liquid

  A) bench top

  B) hand-held

  
• CALORIMETER

  • air between inner and outer vessel acts as heat insulator (little to no heat exchange between contents)

  THERMOMETER and a STIRRER

  • thermometer : measure the temperature of the liquid in the inner vessel
  • stirrer : stir the liquid and distribute heat in the vessel

  
• CENTRIFUGE

  • puts an object in rotation around a fixed axis
  • using sedimentation principle (centrifugal acceleration causes denser substances and particles to move outward in radial direction
  • causes denser particles to settle to the bottom and low-density substances to the top

  A) centrifuge tube

  B) centrifuge

  
• EVAPORATING DISHES

  • evaporate excess solvents
  • to produce concentrated solution or a solid precipitate of the dissolved substance

  A) evaporating dish

  B) tripod

  C) bunsen burner

  D) gauze

  E) evaporating dish