Homework Answers
The energy of one photon is given by
E = hv = hc/λ ...............(1)
where h = Planck's constant = 6.626 x 10-34 Js
c = 3 x 108 m/s
λ = 6.19 x 10-7 m
E = (6.626 x 10-34 Js) x (3 x 108 m/s)/(6.19 x 10-7 m) = 3.21 x 10-19 J/photon
Add Answer to:
The spectral line of a certain metal occurs at 619 nm (6.19x10 this light m). Calculate...
What is the frequency of light with a wavelength of 489 nm? Show Tutor Steps Submit...
What is the frequency of light with a wavelength of 489 nm? Show Tutor Steps Submit Try Another Version 10 item attempts remaining Submit Answer
What is the frequency of ultraviolet light with a wavelength of 230 nm? Hz Submit Show...
What is the frequency of ultraviolet light with a wavelength of 230 nm? Hz Submit Show Approach Show Tutor Steps Submit Answer Try Another Version 10 item attempts remaining
What is the frequency of ultraviolet light with a wavelength of 285 nm? Hz Submit Show...
What is the frequency of ultraviolet light with a wavelength of 285 nm? Hz Submit Show Approach Show Tutor Steps Submit Answer Try Another Version 10 item attempts remaining
What is the wavelength, in nanometers, of light with a frequency of 1.47x1015 Hz? nm Submit Show Approach Show Tuto...
What is the wavelength, in nanometers, of light with a frequency of 1.47x1015 Hz? nm Submit Show Approach Show Tutor Steps Submit Answer Try Another Version 10 item attempts remaining
Some chemical reactions, such as formation of ozone in Earth's stratosphere, can be initiated by light...
Some chemical reactions, such as formation of ozone in Earth's stratosphere, can be initiated by light that has a wavelength less than some particular value Calculate the longest wavelength (nm) that can provide an energy of at least 385 kJ/mol. Submit Show Approach Show Tutor Steps Submit Answer Try Another Version 8 item attempts remaining
TUTOR Determining Frequency from Wavelength What is the frequency of ultraviolet light with a wavelength of...
TUTOR Determining Frequency from Wavelength What is the frequency of ultraviolet light with a wavelength of 125 nm? 2.39x10^13 Hz x Resubmit Show Approach Show Tutor Steps Incorrect You can work though the tutor steps and submit your answer again. Submit Answer Try Another Version 8 item attempts remaining
[References] Use the References to access important values if needed for this question. 400 nm Violet...
[References] Use the References to access important values if needed for this question. 400 nm Violet Blue In a discharge tube, xenon atoms emit light as they undergo transitions from one energy level to another that is 4.414x10-19 J lower in energy. Calculate the wavelength of the light emitted and by referring to the figure to the right, predict the color of the line in the discharge spectrum. 500 nm Green Yellow Wavelength = 600 nm Orange Color=D Red 700...
eletrochemical The following skeletal oxidation-reduction reaction occurs under acidic conditions. Cut +NO3 - HNO2 + Cu2+...
eletrochemical
The following skeletal oxidation-reduction reaction occurs under acidic conditions. Cut +NO3 - HNO2 + Cu2+ Write the balanced REDUCTION half reaction. (Enter electrons as e.) Reactants Products Submit Answer Try Another Version 8 item attempts remaining The following skeletal oxidation-reduction reaction occurs under acidic conditions. Cr + Cu2+ - Cu + CIO3- Write the balanced REDUCTION half reaction. (Enter electrons as e.) - Reactants Products Submit Answer Try Another Version 10 item attempts remaining Visited The following skeletal oxidation-reduction...
A stock solution of K S is available to prepare solutions that are more dilute. Calculate...
A stock solution of K S is available to prepare solutions that are more dilute. Calculate the volume, in ml., of a 2.0-M solution of KS required to prepare exactly 100 ml of a 0.130-M solution of Kys ml Submit Show Approach Show Tutor Steps Submit Answer Try Another Version 10 item attempts remaining Click to try another version of this item. "Note that your response(s) and the points you have earned on this item will be cleared. Previous News)...
[References) This question has multiple parts. Work all the parts to get the most points. An...
[References) This question has multiple parts. Work all the parts to get the most points. An energy of 7.0 x 10 J/atom is required to cause a copper atom on a metal surface to lose an electron a Calculate the longest possible wavelength of light that can ionize a copper atom. Wavelength D m Submit Submit Answer Submit Answer T ry Another Version Try Another Version 9 item attempts remaining iom attempts remaining Previous Next
What is the frequency of light with a wavelength of 489 nm? Show Tutor Steps Submit Try Another Version 10 item attempts remaining Submit Answer
What is the frequency of ultraviolet light with a wavelength of 230 nm? Hz Submit Show Approach Show Tutor Steps Submit Answer Try Another Version 10 item attempts remaining
What is the frequency of ultraviolet light with a wavelength of 285 nm? Hz Submit Show Approach Show Tutor Steps Submit Answer Try Another Version 10 item attempts remaining
What is the wavelength, in nanometers, of light with a frequency of 1.47x1015 Hz? nm Submit Show Approach Show Tutor Steps Submit Answer Try Another Version 10 item attempts remaining
Some chemical reactions, such as formation of ozone in Earth's stratosphere, can be initiated by light that has a wavelength less than some particular value Calculate the longest wavelength (nm) that can provide an energy of at least 385 kJ/mol. Submit Show Approach Show Tutor Steps Submit Answer Try Another Version 8 item attempts remaining
TUTOR Determining Frequency from Wavelength What is the frequency of ultraviolet light with a wavelength of 125 nm? 2.39x10^13 Hz x Resubmit Show Approach Show Tutor Steps Incorrect You can work though the tutor steps and submit your answer again. Submit Answer Try Another Version 8 item attempts remaining
[References] Use the References to access important values if needed for this question. 400 nm Violet Blue In a discharge tube, xenon atoms emit light as they undergo transitions from one energy level to another that is 4.414x10-19 J lower in energy. Calculate the wavelength of the light emitted and by referring to the figure to the right, predict the color of the line in the discharge spectrum. 500 nm Green Yellow Wavelength = 600 nm Orange Color=D Red 700...
eletrochemical
The following skeletal oxidation-reduction reaction occurs under acidic conditions. Cut +NO3 - HNO2 + Cu2+ Write the balanced REDUCTION half reaction. (Enter electrons as e.) Reactants Products Submit Answer Try Another Version 8 item attempts remaining The following skeletal oxidation-reduction reaction occurs under acidic conditions. Cr + Cu2+ - Cu + CIO3- Write the balanced REDUCTION half reaction. (Enter electrons as e.) - Reactants Products Submit Answer Try Another Version 10 item attempts remaining Visited The following skeletal oxidation-reduction...
A stock solution of K S is available to prepare solutions that are more dilute. Calculate the volume, in ml., of a 2.0-M solution of KS required to prepare exactly 100 ml of a 0.130-M solution of Kys ml Submit Show Approach Show Tutor Steps Submit Answer Try Another Version 10 item attempts remaining Click to try another version of this item. "Note that your response(s) and the points you have earned on this item will be cleared. Previous News)...
[References) This question has multiple parts. Work all the parts to get the most points. An energy of 7.0 x 10 J/atom is required to cause a copper atom on a metal surface to lose an electron a Calculate the longest possible wavelength of light that can ionize a copper atom. Wavelength D m Submit Submit Answer Submit Answer T ry Another Version Try Another Version 9 item attempts remaining iom attempts remaining Previous Next
Most questions answered within 3 hours.
-
Casey is on trial under criminal allegations that she engaged in
fraudulent behavior at the company...
asked 8 minutes ago -
1. A boy stands on one end of a boat, and then walks to the
other...
asked 3 minutes ago -
Surplus Styles is a manufacturer of hair care products,
including shampoos, conditioners, and hair gels. The...
asked 6 minutes ago -
Using an income-expenditure diagram, use the infinite line and
double-drop line tools to show the economy...
asked 15 minutes ago -
Which expression computes a pseudorandom integer between -10 and
10 using rand()
from cstdlib?
A. (rand(...
asked 21 minutes ago -
Roybus, Inc., a manufacturer of flash memory, just reported that
its main production facility in Taiwan...
asked 29 minutes ago -
Two capacitors connected in parallel produce an equivalent
capacitance of 45.0 μF but when connected in...
asked 38 minutes ago -
The differences between the two sets of dependent data are -1,
2,-,2, 2. Round to the...
asked 55 minutes ago -
A χ2-curve, looking at the relationship between age and hours
spent working at an office per...
asked 1 hour ago -
The pH of a sample of water from a river is 5.0. A
sample of effluent from...
asked 2 hours ago -
At the beginning of the period, the Fabricating Department
budgeted direct labor of $136,500 and equipment...
asked 2 hours ago -
Please answer all
____ 28. Rent control is usually
justified on the grounds that it protects...
asked 2 hours ago