Homework Help: Chemistry

Posted by AJ on Tuesday, November 4, 2008 at 12:12am.

I need help with these two problems:

1.The H-Cl bond has a frequency of vibration of 8.662 multiplied by 10^13 Hz. What wavelength (in 痠) corresponds to that frequency?

-is the answer just (3.00x10^8 m*s)/(8.662x10^13 s^-1)

2.A flame has a characteristic color due to emissions of photons of wavelength 525 nm. What is the mass equivalence of 2 mol photons of this wavelength (1 J = 1 kg搶2/s2)?

Chemistry - DrBob222, Tuesday, November 4, 2008 at 9:40am
For 1 you have it correct except that the problem asks for the answer in micrometers and your answer has the unit of meters.

For 2,
E = hc/wavelength.
Remember to convert wavelength from nm to meters and that will give you the energy for one photon. Multiply that by 2 to give you two photons and set that equal to mc^2 to calculate mass.

Answer this Question

Related Questions

Chemistry - Covalent bonds in a molecule absorb radiation in the IR region and ...
Chemistry - Determine the frequency of light with a wavelength of 3.728 ×...
physics - A harpsichord string of length 1.60 m and linear mass density 25.0 mg/...
Physics - A harpsichord string of length 1.50 m and linear mass density 26.0 mg/...
Physics - If a metal with a threhold frequency of 1.1 x 10^15 Hz is illuminated ...
college chemistry - CH4 + 2 Cl2--> CH2Cl2 + 2HCl Cl-Cl bond energy: 242 ...
Physics - An electromagnetic wave has a wavelength of 6.2 x 10^14 m. What is the...
Physical Science - I need someone to go over and correct my answers please, I ...
Physics - I need someone to go over my answers please, I was haveing trouble ...
chem - the wavelength of ligh is 310 nm. calculate the frequency? what is the ...

For Further Reading

First Name:
School Subject:
Answer: