CCHM LAB - WEEK 3 - GLASSWARES

Question 1

LIST ALL THE TYPES OF GLASS

Answer 1

• High Thermal Resistant/Borosilicate Glass
• Boron-free/Soft Glass
• Corex
• Flint glass
• Low-actinic glass

Question 2

A TYPE OF GLASS used for heating and sterilization,

Answer 2

High Thermal Resistant/Borosilicate Glass

Question 3

a type of glass that is high resistance to
alkali

Answer 3

boron-free/soft glass

Question 4

a type of glass that is special alumina-silicate glass that has
been strengthened chemically than thermally

Answer 4

corex

Question 5

a type of glass that is poor resistance to high
temperature; used to make disposable
glassware

Answer 5

flint glass

Question 6

a type of glass that is used for light sensitive
reagents

Answer 6

low-actinic glass

Question 7

list all the glassware for measurements

Answer 7

volumetric flasks
beaker
erlenmeyer flask
test tubes

Question 8

a glassware for measurement that Are frequently used
for preparation of standard solutions

Answer 8

volumetric flask

Question 9

Wide straight sided cylindrical
vessels that are available in many sizes;
used generally for mixing and for
reagent preparation

Answer 9

beaker

Question 10

Are often used for
preparing reagents and titration
purposes

Answer 10

erlenmeyer flask

Question 11

____ comes in
different sizes depending on their
intended use; chemical reaction
medium

Answer 11

test tubes

Question 12

A long and straight
sided cylindrical piece of glassware with calibration

Answer 12

graduated cylinder

Question 13

Long cylindrical graduated
pipettes with stopcock (glass or Rubber);
used for titration

Answer 13

biuret

Question 14

Another type of volumetric glassware used
extensively in the laboratory

Answer 14

pipettes

Question 15

3 classification of pipettes

Answer 15

I. Calibration Marks/Design
II. Drainage Characteristic
III. Types

Question 16

I. Calibration Marks/Design
* To _____ – delivers the exact amount it holds into a container

Answer 16

deliver (TD)

Question 17

I. Calibration Marks/Design

• To ____ – holds the particular volume
  but does not dispense the exact volume

Answer 17

contain (TC)

Question 18

2 drainage type

Answer 18

blow out and self draining

Question 19

characteristic of blow out pipettes

Answer 19

has etched rings and the exact volume is obtained when the last drop is blown out

Question 20

characteristic of self draining

Answer 20

it does not have etched rings and liquid
is allowed to drain by gravity

Question 21

2 variables under the “types of pipettes”

Answer 21

transfer pipettes and graduated/measuring pipette

Question 22

3 variables under transfer pipettes

Answer 22

volumetric, pasteur, and automatic ppette

Question 23

2 variables under graduated or measuring pipette

Answer 23

serologic and mohr

Question 24

characteristic of serologic pipette

Answer 24

with graduation to the tip; blow out

Question 25

what is the drainage characteristic of a serology pipette?

Answer 25

blow out

Question 26

what is the characteristics of mohr pipette?

Answer 26

without graduation and self draining

Question 27

what is the drainage characteristic of mohr pipette?

Answer 27

self draining

Question 28

An instrument that uses centrifugal force to separate solid matter from a liquid suspension

Answer 28

centrifuge

Question 29

In handling solutions, When pouring contents from a reagent bottle into an open-mouth container such as a beaker, use ____

Answer 29

a stirring rod.

Question 30

Handling Solutions 1. When pouring contents from a reagent bottle into an open-mouth container such as a beaker, use a stirring rod. 2. Remove the glass stopper from reagent bottles by pulling it with the use of ___and ___ fingers, palm facing upward

Answer 30

index and middle

Question 31

Using the Laboratory Pipette If a small portion of the liquid is to be transferred to another container, use a _____ or ___

Answer 31

pipette or a medicine dropper

Question 32

Using the Laboratory Pipette If a small portion of the liquid is to be transferred to another container, use a pipette or a medicine dropper Let the pipette be filled by means of ____

Answer 32

capillary action

Question 33

Using the Laboratory Pipette To hold the liquid in, place the ___ finger at the open end of the pipette

Answer 33

index

Question 34

if exact amounts of solutions are needed, use an ___

Answer 34

aspirator

Question 35

heating solutions in a test tube FUMP

Answer 35

Fill - use - make - place

Question 36

Fill in heating test tube

Answer 36

Fill the test tube with half full of liquid to be heated

Question 37

Use in heating test tube

Answer 37

Use a test tube holder to hold the test tube

Question 38

"Make" in heating test tube

Answer 38

make sure the test tube is positioned 45 degrees angle when heating it

Question 39

"place" in heating test tube

Answer 39

place it over the flame passing it back and forth so that the flame strike the tube just below at the liquid level but never at the bottom of the tub

Question 40

2 ways to separate mixtures

Answer 40

filtration and decantation

Question 41

it is the process of separating solid particles from liquid by pouring the mixture in a filter paper

Answer 41

filtration

Question 42

in filtration, it is the solid left on the filter paper

Answer 42

residue

Question 43

in filtration, it is the liquid portion at the bottom of the container

Answer 43

filtrate

Question 44

It is the process of pouring the liquid portion of the mixture to another container while not disturbing the solid particles that settle at the bottom of the containe

Answer 44

decantation

Question 45

in decantation, it is the solid at the bottom of the container

Answer 45

residue/sediments

Question 46

the liquid portion on top of the solution

Answer 46

decantate

Question 47

Commonly used for constriction of reagent bottle

Answer 47

High thermal resistant/borosilicate glass