please help within five minutes

Chemistry
Tutor: None Selected Time limit: 1 Day

[Cu(NH3)4] 2+ solutions exhibit a deep blue-violet color. How can you use spectrophotometry to confirm that this reaction has occurred and that the product formed is in fact tetraamminecopper(lI)sulfate. Would you expect the wavelength of maximum absorbance (λmax) for Cu(NH3)4 2+ to be greater than or less than λ max for Cu(H2O)6 2+? Explain.

Apr 19th, 2015

In the lab, you will obtain and record the UV-Visible absorption spectrum of the solution and compare it with the standard spectrum of [Cu(NH3)4]2+. If both spectras match then it is confirmed that the ideal product is obtained.

The wavelength of Cu(NH3)4 2+ is less than lamda max for  Cu(H2O)6 2+. Thus it absorbs the shorter wavelength yellow light, this is why it has a deep blue color.  

Apr 19th, 2015

Studypool's Notebank makes it easy to buy and sell old notes, study guides, reviews, etc.
Click to visit
The Notebank
...
Apr 19th, 2015
...
Apr 19th, 2015
Feb 21st, 2017
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer