www.saplin glearning.com/ibisoms/mod/ibis/view.php?id 3224084 Nettlx f Facebook
ID: 518654 • Letter: W
Question
www.saplin glearning.com/ibisoms/mod/ibis/view.php?id 3224084 Nettlx f Facebook Secure coud Access D Tower af God scanl N Pastsecret Acompleto guide to N Malta o dag breeder Kids Rides & Rdes to Account summary by Sapling Learning Sapling Learning I Indlana State University-Chem 32 I Act huities and Due Dates I HV12 My Assignment Resources sV5'2017 09:00AM A 26/100 C 4/25/2017 0702 PM Gradebook O ent Information Assig Print Calculatar Paradi Table Available From 00 AM Question 10 of 15 5/5/2017 09:00 AM Points possibl Map GA Sapling Learning Grade Category: Default A 0.0000713 M sample of Compound X in a solvent has an absorbance of 0.377 at 528 nm in a 1.000-cm Description cuvet. The solvent alone has an absorbance of 0.066. What is the molar absorptivity of Compound X Policies: Number any g eep trying to you get it right or give up. A different sample of Compound X in the same solvent has an absorbance of 0.492 at 528 nm when measured with the same cuvet. What is the concentration of this second sample? You lose 10% of the points available to Number mol X eTextbook O Help with This Top o Web Help & Videos OTechnical Support and Bug Reports AO 8 Gi Up & view Solution 2 Check Answer Next JExit Previous Hint 2017 Sapling Learning, about us careers privacy polcy tems of use contact us help O Logout HelpExplanation / Answer
1)
Concentration = 0.0000731 M
absorbane = 0.377 - 0.066 = 0.311
path length = 1.00 cm
A = e C l
0.311 = e x 0.0000731 x 1
e = 4254 M-1cm-1
Absoptivity = 4.25 x 10^3 M-1 cm-1
2)
A = e C l
0.492 = 4.25 x 10^3 x C x 1
C = 0.0000116 M
concentration = 0.0000116 Mol / L
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.