Lab techniques and apparatuses

Question 1

The solution’s volume is read at the ________.

Answer 1

Lower Miniscus

Question 2

What is ebullition

Answer 2

Sudden outburst of the liquid (when heating)

Question 3

1. Decantation
2. What do you call the liquid that is being transferred

Answer 3

1. separation of liquid from solid
2. Supernatant

Question 4

Test tube

Answer 4

Hold and mix liquids

Question 5

Wire gauze

Answer 5

Supports a container, such as beaker, on a ring stand during heating

Question 6

Filter funnel

Answer 6

for filtration
To transfer liquids or fine-grained materials into containers with small openings

Question 7

Clay triangle

Answer 7

Supports crucible during heating

Question 8

Crucible

Answer 8

Holds chemicals during heating to very high temperatures

Question 9

Graduated cylinder

Answer 9

to measure a precise volume of liquid

Question 10

Beaker

Answer 10

to hold, mix, and heat liquids

Question 11

Bunsen Burner

Answer 11

Heat source in the absence of flammable materials

Question 12

For grasping and lifting laboratory items including, hot evaporating dishes, beakers, crucibles, and other laboratory apparatuses

Answer 12

tongs

Question 13

To transfer solids

Answer 13

Spatula/Scoopula

Question 14

To prepare solutions of accurate volume

Answer 14

Volumetric flask

Question 15

For dispensing accurate volume of a liquid

Answer 15

Buret

Question 16

To support laboratory glassware, such as beaker or funnel

Answer 16

Iron stand

Question 17

To hold and mix chemicals. The small neck is designed for mixing without spilling

Answer 17

Erlenmeyer flask

Question 18

To secure glassware to a ring stand

Answer 18

Iron clamp

Question 19

to heat liquids for evaporation

Answer 19

evaporating dish

Question 20

Mortar and pestle

Answer 20

to crush and grind materials

Question 21

To rinse part of glasswares and add small quantities of water

Answer 21

Wash bottle

Question 22

for measuring mass

Answer 22

balance

Question 23

To support laboratory glassware,water bath, etc.

Answer 23

Iron stand

Question 24

Stirring rod

Answer 24

for stirring and mixing

Question 25

to hold solids while they are being weighed or to cover a beaker

Answer 25

Watch glass

Question 26

Volumetric Pipet

Answer 26

measure small amounts of liquid very accurately

Question 27

Used to draw in or suck the liquid in a volumetric pipet

Answer 27

Aspirator

Question 28

NaOH

Answer 28

caustic soda

Question 29

NaHCO3

Answer 29

baking soda

Question 30

what are the 4 classifications of Inorganic compounds

Answer 30

Bases
Acids
Salts
Oxides

Question 31

Classification: ( oxide, base, acid, salt)
1. LiOH
2. AgCl
3. HSCN
4. HBrO2
5. K2O
6. H2S
7. CaCl2
8. AlPO3
9. BaCO3
10. Mn(OH)2

Answer 31

1. base
2. Salt
3. Acid
4. Acid
5. Oxide
6. Acid
7. Salt
8. Salt
9. Salt
10. Base