M1.2: LAB TECHNIQUES

Question 1

Chemical reaction that OCCURS IN AQUEOUS SOLUTION when two ions bond to form an INSOLUBLE SALT

Answer 1

PRECIPITATE

Question 2

The process of SEPARATION OF LIQUID FROM SOLID AND OTHER IMMISCIBLE LIQUIDS, by removing the liquid
layer at the top from the layer of solid or liquid below.

Answer 2

DECANTATION

Question 3

• COMMON METHOD of separation of
  solids and liquids
• the act of POURING A MIXTURE ONTO A MEMBRANE (filter paper) that allows the passage of liquid (the filtrate) and results in the collection of the solid (residue)

Answer 3

FILTRATION

Question 4

• The PRECIPITATE should be allowed to SETTLE.

Answer 4

GRAVITY FILTRATION

Question 5

• separation process which uses the ACTION OF CENTRIFUGAL FORCE to promote ACCELERATED SETTLING OF PARTICLES in a solid-liquid mixture
• Uses a centrifuge machine

Answer 5

CENTRIFUGATION

Question 6

deliver KNOWN VOLUME of liquids.

Answer 6

PIPETS

Question 7

calibrated to deliver ONE FIXED VOLUME

Answer 7

TRANSFER PIPET

Question 8

delivers a VARIABLE VOLUME

Answer 8

MEASURING PIPET

Question 9

A PRECISELY MANUFACTURED GLASS TUBE with graduations

Answer 9

BURETS

Question 10

the SMALLEST INCRIMENT OF MASS THAT CAN BE INDICATED.

Answer 10

READABILITY

Question 11

mass of the EMPTY VESSEL

Answer 11

TARE