Chapter 1: Laboratory Basics

Question 1

Borosilicate glass

Answer 1

Characterized by a high degree of thermal resistance

Question 2

Low actinic glass

Answer 2

Gives maximum protection to light-sensitive materials, amber or red color added

Question 3

Polypropylene

Answer 3

Plastic pipette tips

Question 4

Polyethylene

Answer 4

Not suitable for use with strong acids, bases, and oxidizing agents

Question 5

Polystyrene

Answer 5

Not resistant to most hydrocarbons, ketones, and alcohols

Question 6

Teflon

Answer 6

Used for stirring bars, tubing, cryogenic vials, and bottle-cap liners; almost chemically inert

Question 7

TC (to contain) pipette

Answer 7

Designed to contain a certain amount of liquid; blowout

Question 8

TD (to deliver) pipette

Answer 8

Designed to transfer a certain amount of liquid; drain by gravity

Question 9

Volumetric flasks

Answer 9

Used to contain an exact volume when the flask is filled to the mark

Question 10

Erlenmeyer flasks

Answer 10

Designed to hold different volumes rather than one exact amount

Question 11

Capacity

Answer 11

Maximum load one can weigh

Question 12

Accuracy

Answer 12

Closeness of the agreement between the measured result and the true value

Question 13

Repeatability

Answer 13

Ability of a balance to produce the same result for repeated weighing of the same load under the identical measurement conditions

Question 14

Swinging-bucket rotor

Answer 14

Used to separate cells from serum or plasma

Question 15

Celsius and Kelvin

Answer 15

0° Celsius = 273 K

Question 16

Celsius and Fahrenheit

Answer 16

°F = (9/5) °C + 32