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Luda [366]
3 years ago
7

What is the wavelength in nanometers of a photon of light that has a frequency on 1.5 x 10^15 hz

Chemistry
2 answers:
vladimir2022 [97]3 years ago
7 0
Equation:  

Ф = v / f where Ф is wavelength, v is velocity of wave (which is usually the speed of light 300,000 km per second, and f is frequency.

Ф = (300,000) / 1.5x10^15

Vladimir79 [104]3 years ago
5 0
We have<span> been looking at the wave properties of electromagnetic radiation. ...  the</span>wavelength<span> and </span>frequency<span> of </span>photons<span> with the following energies: E</span>photon<span>=1200 eV (x-ray) 1.0 </span>nm3.0x10-17 Hz; Ephoton=4.2x10-19<span> J (blue ... MeV</span>/c2<span> ) 8.2</span>x10-14 J 0.51 MeV; Proton (1.67x10-27<span> kg)</span>1.5x10<span>-10 J 0.94</span>
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Which of the following elements has 3 electrons in the outermost d orbital?
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A

Explanation:

Element A has 3 electrons in outermost shell so its valency is 3. It will loose 3 electrons to attain stability, as loss of 3 electrons is easier than gain of 5 electrons.

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(Refer to Image)

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3 0
3 years ago
muriatic acid is the commercial name for hydrochloric acid that can be purchased from hardware stores as a solution that is 30%(
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5 0
3 years ago
A geological sample is found to have a Pb-206/U-238 mass ratio of 0.337/1.00. Assuming there was no Pb-206 present when the samp
azamat

Answer:

Age=2.52*10^9 years

Explanation:

To determine the age, we need to know how much U have become Pb, so first we have to calculate the Pb moles present in a sample:

n_{Pb}=\frac{0.337g}{206g/mol}=0.00164 mol

n_{U}=\frac{1 g}{238g/mol}=0.0042 mol

The percentage of U degradation:

P=\frac{n_{Pb}}{n_{Pb}+n_{U}}

P=\frac{0.00164}{0.00164+0.0042}=0.28

Assuming that the life time is linear:

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Age=2.52*10^9 years

4 0
4 years ago
Read 2 more answers
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