Spectrophotometry

Question 0

Most common light source

Answer 0

Tingsten light bulb

Question 1

Oldest yet most commonly used

Answer 1

Colorimetry

Question 2

Parts of a spectrophotometer

Answer 2

Lemecpm

Question 3

Other kinds of light source

Answer 3

Mdhxmg

Question 4

Minimizes unwanted or stray light

Answer 4

Entrance slit

Question 5

Isolates specific or indiv wavelengths

Answer 5

Monochromator

Question 6

Prevents the entrace of scattered light

Answer 6

Entrance slit

Question 7

Wedge shape piece of glass, quartz or nacl

Answer 7

Prism

Question 8

Made by cutting grooves or slit in an aluminized surface

Answer 8

Diffraction gratings

Question 9

Simple, least expensive monochromator

Answer 9

Filter

Question 10

Holds the sample

Answer 10

Cuvet

Question 11

Semi transparent silver films on both sides of a dielectric

Answer 11

Filter

Question 12

Kinds of cuvet

Answer 12

Aqbs

Question 13

Composed of selenium on a plate of iron covered with transparent layer of silver

Answer 13

Barrier layer

Question 14

Contains cathode and anode enclosed in a glass case

Answer 14

Phototube

Question 15

Most common type of photodetector

Answer 15

Photomultiplier tube

Question 16

Photodetector that requires no external voltage

Answer 16

Barrier layer

Question 17

Gives of electrons when light strikes it

Answer 17

Photo tube

Question 18

Measure light in a multitude of wavelengths

Answer 18

Photodiode

Question 19

Also known as absorption cell, analytical cell or sample cell

Answer 19

Cuvet

Question 20

Detects less amt of light

Answer 20

Photodiode

Question 21

State the beer’s law

Answer 21

Concentration of the inknown substance is directly proportional to the absorbed light and inversely proportional to the amt of transmitted light

Question 22

Amt of light absorbed

Answer 22

Absorbance

Question 23

Used to assess wavelength accuracy

Answer 23

Didymium & holmium oxide filter

Question 24

To assess absorbance accuracy

Answer 24

Neutral density filter and dichromate sol.

Question 25

State 5 poisonous vapors

Answer 25

Ccl4 chloroform mercury bromide ammonia

Question 26

5 flammable and combustible solvents

Answer 26

Acetone ethanol toluene methanol cylene