A 40-mL cigarette smoke sample was collected and made to react with 10 mL of the NOX indicator mixture solution. The color was allowed to develop and the absorbance reading a UV-Vis spectrophotometer at 550 nm. The absorbance reading of the sample was 0.570. Calculate: a. Concentration of NO₂ (in µg NO₂/mL) if the equation of the line from a standard calibration curve is: y = 1.259x + 0.0222 b. Concentration of NO₂ gas (in µg NO₂/L) in the gaseous sample

A 40-mL cigarette smoke sample was collected and made to react with 10 mL of the NOX indicator mixture solution. The color was allowed to develop and the absorbance reading a UV-Vis spectrophotometer at 550 nm. The absorbance reading of the sample was 0.570. Calculate: a. Concentration of NO₂ (in µg NO₂/mL) if the equation of the line from a standard calibration curve is: y = 1.259x + 0.0222 b. Concentration of NO₂ gas (in µg NO₂/L) in the gaseous sample

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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A 40-mL cigarette smoke sample was collected and made to react with 10 mL of the NOx indicator mixture solution. The color was allowed to develop and the absorbance reading a UV-Vis spectrophotometer at 550 nm. The absorbance reading of the sample was 0.570. Calculate: a. Concentration of NO₂ (in µg NO₂/mL) if the equation of the line from a standard calibration curve is: y = 1.259x + 0.0222 b. Concentration of NO₂ gas (in µg NO₂/L) in the gaseous sample
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