How To Calculate The Energy of a Photon Given Frequency & Wavelength in nm Chemistry

This chemistry video tutorial explains how to calculate the energy of a photon given the frequency and the wavelength in nm. It also explains how to calculate the total energy given the moles of photons or the mass of a substance in grams.
Speed of Light, Frequency, Wavelength:
• Speed of Light, Freque...
Photon Energy:
• How To Calculate The E...
The Photoelectric Effect:
• Photoelectric Effect, ...
De Broglie Wavelength:
• De Broglie Wavelength ...
The Bohr Model of Hydrogen:
• Bohr Model of the Hydr...
Heisenberg's Uncertainty Principle:
• Heisenberg's Uncertain...
________________________________
Intro to Quantum Numbers:
• Quantum Numbers
Orbitals & Atomic Energy Levels:
• Orbitals, Atomic Energ...
Maximum Number of Electrons:
• How To Determine The M...
Intro to Electron Configuration:
• Electron Configuration...
Electron Configuration Exceptions:
• Electron Configuration...
Noble Gas Notation:
• Electron Configuration...
Electron Configuration of Ions:
• Electron Configuration...
_______________________________
Orbital Diagrams:
• Orbital Diagrams and E...
Paired & Unpaired Electrons:
• How To Determine The N...
Aufbau's Principle & Hund's Rule:
• Aufbau's Principle, Hu...
Paramagnetic & Diamagnetic Elements:
• Paramagnetic & Diamagn...
Valence Electrons & Periodic Table:
• Valence Electrons and ...
Effective Nuclear Charge:
• How To Calculate The E...
_________________________________
Slater's Rule:
• How To Use Slater's Ru...
How To Identify The Element:
• Electron Configuration...
Quantum Numbers - Mega Review:
• Quantum Numbers - n, l...
Quantum Numbers - Practice Test:
• Orbitals, Quantum Numb...
Final Exams and Video Playlists:
www.video-tutor.net/
Full-Length Videos and Worksheets:
/ collections

[@TheOrganicChemistryTutor]

Final Exams and Video Playlists: www.video-tutor.net/ Full-Length Videos & Worksheets: www.patreon.com/MathScienceTutor/collections

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[@georgesadler7830]

Professor Organic Chemistry Tutor, thank you for another great video/lecture on How To Calculate The Energy of a Photon Given the Frequency and Wavelength in General/AP Chemistry. This material is easy to follow provided that the correct formula is used to produce the solution. This is an error free video/lecture on KZbin TV with the Organic Chemistry Tutor.

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[@katcampirides9699]

is anyone else not getting the same answers as he is? I'm typing in everything correctly and my numbers are very different than his. I've also tried two different calculators

[@alyssarose2818]

If you’re talking about 3:47, I got it wrong as well. Turns out, you have to divide by 5.00 x 10^-9, not 500. Thats what worked for me.

[@spcchckn]

@@alyssarose2818 You're a life saver! I was wondering where -19 came from when I recalculated again and still got 3.98*10^-37

[@spcchckn]

Ah nope my exponents are still not matching up :(

[@alyssarose2818]

@@spcchckn ~ make sure to use parentheses if you’re using a calculator!

[@eudsies123]

@@spcchcknparenthesis for each thing

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i get the base number right, but not the exponents :'(

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[@ronelfronda928]

@@muhali5136 how do i write 500 nanometer to 500 x 10 something? i wanna know

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New Photon equation P=ETC2 vs E=mc2 Please share

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[@allyssapayongayong4092]

Where did you get the exponent -19????

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[@ThePixelFighter]

I'm getting 3.98x10^-17. I have everything bracketed, what am i doing wrong?

[@stoplooking3369]

ThePixelFighter calculator might be set to radiant not degrees , change that in the mode setting

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[@Azureitsu]

For Problem #2 and #3, if anyone got the exponent - 31 using a scientific calculator, and it didn't align with the video which is - 19, simply add brackets to those 3 given, and add a multiplication sign between the two converging parentheses. For example (6.626 x 10^-34) x (3 x 10^8) ÷ (240 x 10^-9) Which would equate to 8.28 x 10^-19 As per shown in the video. If you get 8.28 x 10^-31 Instead, its because you forgot the parentheses, and that multiplication sign in between i guess.

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[@klieis9491]

Calculate the energy for a single photon of two lights given below (h = 6.626 x 10-34 J s). Do the energy values make sense? How? (𝑬 = 𝒉𝝂 = 𝒉𝒄), (𝑐 = 3.00×108 𝑚/𝑠), (h = 6.626 x 10-34 J s) (109 nm= 1m)

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[@bryceedwards5786]

For problem #2 Make sure you put brackets around them like this: (6.626x10^-34)x(3x10^8)/(500x10^-9)

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[@jaimeduncan6167]

There is an immediate problem with this equation, that I have never seen addressed in a video: That implies that the energy of a photon is associated with its color at a fundamental level. That implies that the Doppler effect is magic, or that frequency and therefore time are relative to movement. This is a nice connection.

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1:37 how did u get -22 from -34 and 9

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What calculator are you using?

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[@TheOverlordPepper]

For the second problem, how do I put all that in a calculator? I keep getting syntax errors

[@sivaramakrishnanr.7173]

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[@kozuta8858]

help I got 3.9756E-37 how do I convert it to 3.98E-19

[@m1asdream]

How do you get the -19 part tho because when I do it I get 17

[@priyanshudas_4386]

Nice dear

[@martinfamily3623]

How do you get that correct exponent? When I enter into a calc it gives me 33 or whatever not -19

[@ashfisamia3256]

How do you put this in the calculator, I always get the wrong exponent.

[@s1non971]

I got the answer but why it's raised to the power of -19 instead of -37?

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same im trying to understand this too. glad im not the only one

[@ahmednasir9143]

What kind calculater use to calculate this

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😂

[@Tactyoh]

7:48 I typed in everything exactly like it was on screen and I got 1.325 E to the -33. I use the EE for all the 10 to the (insert power) on my TI 84 + calculator. It is set to degrees. Why am I not getting 1.325 E to the -18 as shown on screen?

[@kairymizu9530]

you're probably not including the parenthesis for the first number as well

[@zacharyberwin2163]

@@kairymizu9530 What does this mean 😭

[@zacharyberwin2163]

@@kairymizu9530 I'm having the same problem

[@Artist-2027]

Ok so I’m confused on how you get the product with the sci. Notation, can anyone help explain

[@amarnangia3754]

help. For number 2, I typed the equation and I used a energy calculator, but I got 2.4797 eV both times. Help

[@minanagib7897]

im not getting the same exponents

[@samanthanaicker8965]

How did you get ×10^-22 ?? i understood everything else jus not how you got that. Btw i jus started learning this subject 😅

[@TueSorensen]

Question: How many photons (let's say gamma ray photons) do you need to get the mass equivalent of one proton? Or vice versa: if you converted one proton into energy, how many gamma ray photons would it correspond to?

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