ANACHEM LAB

Question 1

is a form of energy that propagates as both electrical and magnetic waves travelling in packets of energy called photons

Answer 1

Electromagnetic Radiation (EMR)

Question 2

Wavelength of the Color Violet

Answer 2

400-450nm

Question 3

Wavelength of the Color Blue

Answer 3

450-495nm

Question 4

Wavelength of the Color Cyan

Answer 4

495-520nm

Question 5

Wavelength of the Color Green

Answer 5

520-565nm

Question 6

Wavelength of the Color Yellow

Answer 6

565-590nm

Question 7

Wavelength of the Color Orange

Answer 7

590-620nm

Question 8

Wavelength of the Color Red

Answer 8

620-700nm

Question 9

Wavelength of the Ultraviolet Light

Answer 9

1-400nm

Question 10

Wavelength of the Infrared Light

Answer 10

2.5nm- 25nm

Question 11

Wavelength of Microwave

Answer 11

25um to 1mm

Question 12

Wavelength of Radiowaves

Answer 12

> 1mm

Question 13

Wavelength of X rays

Answer 13

1nm- 1pm

Question 14

Wavelength of Gamma Rays

Answer 14

<10^-12m

Question 15

Describes the relationship between Absorbance of light and the properties of their medium through which the light is travelling.

Answer 15

Beer- Lambert Law

Question 16

Formula for Beer Lamber Law

Answer 16

A= ECl

A= Absorbance
E= Molar Absorptivity
l= Path Length
C= Concentration

Question 17

shorter wavelength have ________________ energy while longer wavelength will have _____________________

Answer 17

Higher, Lower

Question 18

Photometry that uses the principle of atoms when in a high energy state emit light when they are returned to a lower energy state. The emitted light is what is used to determine the concentration of specific elements in a sample

Answer 18

ATOMIC EMISSION SPECTROPHOTOMETRY

Question 19

Photometry that measure the absorption of light by atoms in a lower energy state.

Answer 19

ATOMIC ABSORPTION SPECTROPHOTOMETRY

Question 20

Photometry that revolves around the emission of light by molecules that have absorbed energy (Fluorescence and Phosphorescence)

Answer 20

MOLECULAR LUMINESCENCE SPECTROSCOPY

Question 21

Measures the intensity of scattered light caused by particles in a suspension

Answer 21

Nephelometry

Question 22

measures the reduction in light intensity as it passes through a turbid solution

Answer 22

Turbidity

Question 23

is based on the bending of light as it passes through a substance

Answer 23

Refractometry

Question 24

Measures the osmotic pressure of a solution

Answer 24

Osmometry

Question 25

Measures the Hydrogen Ion Concentration in a solution, indicates its acidity or alkalinity

Answer 25

pH Electrode

Question 26

Measures the partial pressure of Carbon Dioxide in a solution or Gas

Answer 26

pCO2 Electrode

Question 27

Selectively measures the concentration of specific ions by detecting changes in voltage

Answer 27

Ion-selective Electrode

Question 28

separates charged particles, typically proteins or nucleic acid in a gel or other medium using an electric field

Answer 28

ELECTROPHORESIS

Question 29

Separates Components in a mixture based on their movement through a stationary phase under the influence of a mobile phase

Answer 29

Chromatography

Question 30

separates volatile compounds based on their retention times in a gas phase

Answer 30

Gas Chromatography

Question 31

Identifies and quantifies volatile compounds based on their mass-to-charge ratio

Answer 31

Mass Spectrometry

Question 32

Principles Included in Photometry

Answer 32

• Atomic Emission Photometry
• Atomic Absorption Photometry
• Molecular Luminescence Spectroscopy

Question 33

Principles included in Non-absorptive Methods

Answer 33

• Nephelometry
• Turbidimetry
• Refractometry
• Osmometry

Question 34

Principles included in Electrochemistry

Answer 34

• pH Electrode
• pCO2 Electrode
• Ion-selective Electrode