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 ug 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 ug 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
Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Chapter9: Atomic Absorption And Atomic Fluorescence Spectrometry
Section: Chapter Questions
Problem 9.22QAP: The chromium in an aqueous sample was determined by pipetting 10.0 ml. of the unknown into each of...
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