Listen A dilute solution of caffeine was analyzed by UV-Visible spectroscopy and found to have a percentage transmittance of (1.50x10^1) at 274 nm in a 1.00 cm cell. If molar absorptivity of caffeine at 274 nm is (1.000x10^3) mol¹ cm¹ what is the concentration of caffeine in the dilute solution?

Listen A dilute solution of caffeine was analyzed by UV-Visible spectroscopy and found to have a percentage transmittance of (1.50x10^1) at 274 nm in a 1.00 cm cell. If molar absorptivity of caffeine at 274 nm is (1.000x10^3) mol¹ cm¹ what is the concentration of caffeine in the dilute solution?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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1) Use Hess's Law to determine AH for the following target reaction. 3 CO₂(g) + 4 H₂O(g) b) C3Hg(g) + 5 O₂(g) C(s) + O₂(g) -CO₂(g) 2 H₂(g) + O₂(g) 3 C(s) + 4 H₂(g) →→→ 2 H₂O(g) C3H8(g) AH = AH = ΔΗ ΔΗ = ??? -2043 kJ -393.5 kJ -483.6 kJ
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