Question

Estimate the wavelength of maximum absorption for the octahedral ion hexaamminecobalt(lII) from right the fact that light transmitted by a solution of it is yellow-orange. Hint: use the color wheel to the 620 nm 800 nm 400 nm 580 nm nm Estimate the crystal field splitting energy Ap (in kJ mol) kJ mol-l 430 nm 490 nm Retry Entire Group 9 more group attempts remaining
0 0
Add a comment Improve this question Transcribed image text
Answer #1

Ans. Step 1: Determine wavelength of absorbed light:

The color of light being absorbed is OPPSOITE to the color being transmitted (perceived by our eyes) in the color wheel.

So,

            Color of absorbed light = blue-violet (opposite to yellow-orange)

            And, wavelength of absorbed light = 430 nm (opposite to 580 nm)

# Step 2: Determine crystal field splitting energy (CFSE)


# Crystal field splitting energy (CFSE/10 is given by Ag = h v = Eight -Equation 1 - Equation 2 Where, h Planks constant 6.626E-34 Js Elight Energy of photon c 99792458 ms 2wavelength430 nm4.30E-07 m Speed of light = 2 # Putting the values in equation 2- 6.626E-34 Js x 299792458 m s Ao 4.62E-19 J 4.30E-07 m So, ?? for one single complex 4.62E-19 J complex-1 # Now, for CFSE for 1 mole complex 4.62E-19 J complex-1 - 2.78E+05 J mol1 = 2.78E-02 J mol-1-278.19 kJ mol-1 Ag = 6.02E-23 complex mol-1 x

Add a comment
Know the answer?
Add Answer to:
Estimate the wavelength of maximum absorption for the octahedral ion hexaamminecobalt(lII) from right the fact that...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT