You want to figure out the caffeine concentration in a coffee you bought. You make four caffeine standard solutions of increasing concentration and fit the data. Your line fit has the following equation: y = 0.053(AU/mM) X + 0.0012AU You test your coffee sample and measure an absorbance of 0.82 AU. What is the concentration ○ 0.0042 mM ○ 0.0042 M ○ 15 mM ○ 0.043 mM ○ 15 M 0.043 M

You want to figure out the caffeine concentration in a coffee you bought. You make four caffeine standard solutions of increasing concentration and fit the data. Your line fit has the following equation: y = 0.053(AU/mM) X + 0.0012AU You test your coffee sample and measure an absorbance of 0.82 AU. What is the concentration ○ 0.0042 mM ○ 0.0042 M ○ 15 mM ○ 0.043 mM ○ 15 M 0.043 M

Chemistry & Chemical Reactivity

9th Edition

ISBN:9781133949640

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter4: Stoichiometry: Quantitative Information About Chemical Reactions

Section4.8: Stoichiometry Of Reactions In Aqueous Solution-titrations

Problem 2RC

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