SPECTROMETRY

Question 1

Analytical methods based on the absorption of radiant energy are called?

Answer 1

ABSORPTIMETRIC METHODS

Question 2

An absorptimetric method which utilize the visible region of the spectrum are called?

Answer 2

COLORIMETRIC METHODS

Question 3

As a colorless substance in solution l, may be determined in urine by several different colorimetric methods.

Answer 3

GLUCOSE

Question 4

An instrument used measure the color and intensity of the transmitted radiant energy and it determined by comparison with a color chart or, more accurately,?

Answer 4

SPECTROPHOTOMETER

Question 5

It is defined as methods of analysis which deals with the measurement of spectra.

Answer 5

SPECTROMETRY

Question 6

Is the term used to define the complete system of energy propagated in wave form?

Answer 6

ELECTROMEGNETIC SPECTRUM

Question 7

Energy of this nature appears in such apparent different form as sunlight, color, radio waves and etc.

Answer 7

RADIANT ENERGY

Question 8

This refers to energy in the uv, visible, and in regions of the electromagnetic spectrum.

Answer 8

RADIANT ENERGY

Question 9

Is a branch of spectrometry which embraces the measurement of the absorption, by chemical species, of radiant energy of definite and narrow wavelength, approximating monochromatic radiation.

Answer 9

SPECTROPHOTOMETRY

Question 10

A radiation of a single wavelength?

Answer 10

MONOCHROMATIC RADIATION

Question 11

It is the length of a complete wave or cycle, from the peak of one wave to the peak of the next?

Answer 11

WAVELENGTH

Question 12

units if wavelength measurement in spectrometry are the micrometer?

Answer 12

um?

Question 13

This micrometer is equal to 10-4 cm?

Answer 13

um

Question 14

this is equal to 10-7?

Answer 14

nanometer (nm)

Question 15

which is equal to 10-8 cm?

Answer 15

ANGSTROM (A)

Question 16

Wavelength of radiant energy UV?

Answer 16

200-380 nm

Question 17

Wavelength of radiant energy VISIBLE

Answer 17

380-780 nm

Question 18

Wavelength of radiant energy NESR IR

Answer 18

780-3000 nm

Question 19

Wavelength of radiant energy MEDIUM IR

Answer 19

3.0 - 15 um

Question 20

Wavelength of radiant energy FAR IR

Answer 20

15-300 um

Question 21

Defined as a number of waves per centimeter and is equal to 1/wavelength (cm)

Answer 21

WAVENUMBER

Question 22

May be defined as the number of complete cycles which pass a given point per second (cps)

Answer 22

FREQUENCY

Question 23

May be defined as a functional group which absorbs radiant energy in the uv or visible regions of the spectrum,

Answer 23

CHROMOPHORE

Question 24

A branch of spectrophotometry in which the absorption measurement is mare in the visible region of the spectrum.

Answer 24

COLORIMETRY

Question 25

Are term used to designate instruments which have a radiant energy-dispensing device, such as a prism or gating, and associated electronic which permit the measurement of wavelength and radiant power.

Answer 25

SPECTROPHOMETER AND SPECTROMETER

Question 26

terms useful to designate instruments which have the necessary electronics to permit measurement of radiant power but which use a filter instead of a prism or diffraction grating for the purpose of increasing the sensitivity of the measurement.

Answer 26

COLORIMETER AND FILTER PHOTOMETER

Question 27

Two kinds of fundamental vibrations of atoms exists:

Answer 27

STRETCHING BENDING

Question 28

the distance increases or decreases along the bond axis

Answer 28

STRETCHING

Question 29

Change in bond angle occurs?

Answer 29

BENDING