The wavelength range for ultraviolet radiation is 10-8 m, while that of infrared radiation is 10-5 m. Which type of radiation has more energy, and why?
Infrared has more energy because it has a lower frequency.
Infrared has more energy because it has a shorter wavelength.
Ultraviolet has more energy because it has a higher frequency.
Ultraviolet has more energy because it has a longer wavelength.
Did this page help you?
If the frequency of a photon of electromagnetic radiation is 5.0 x 1014 Hz, determine the energy of the photon.
1.33 x 10-19 J
2.66 x 10-19 J
3.31 x 10-19 J
6.63 x 10-19 J
Did this page help you?
Identify the type of energy transition shown in the diagram
microwave radiation
ultraviolet radiation
infrared radiation
visible light radiation
Did this page help you?
1 markDetermine the amount of energy in joules that a carbon dioxide molecule gains when it absorbs a photon of infrared radiation of wavelength 7 x 10-7 m.
2.26 x 10-19 J
2.47 x 10-19 J
2.62 x 10-19 J
2.84 x 10-19 J
Did this page help you?
1 markA colored solution is analyzed by spectrophotometer. The solution has concentration 0.2 M and path length 1.00 cm. When the filter of the spectrophotometer is set to 430 nm, the absorbance is x.
If the experiment is repeated using a cuvette with 0.5 cm path length deduce the new absorbance.
Did this page help you?
A student creates a calibration curve of relative absorbance of a fixed wavelength of light for different concentrations of nickel(II) ions.
In a further experiment, they want to use the calibration curve to determine the number of moles of nickel(II) sulfate in a 150 mL sample of a solution of nickel(II) sulfate of unknown concentration. The unknown solution is measured and found to have a relative absorbance of 0.6. Determine the number of moles present in the sample.
0.099 mol
0.110 mol
0.135 mol
0.66 mol
Did this page help you?