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What is the concentration of the undiluted KMNO4 solution? O 1.6872 g/L O 0.4872 g/L O 6.872 g/L 0.6872 g/L

What is the concentration of the undiluted KMNO4 solution? O 1.6872 g/L O 0.4872 g/L O 6.872 g/L 0.6872 g/L

Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter4: Chemical Reactions In Solution
Section: Chapter Questions
Problem 4.46QE
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Quèstion 19 A solution of potassium permanganate of unknown concentration was analyzed against a standard of various concentrations. Refer to the following data set to answer the succeeding questions (MM KMNO4 = 158.034 g/mol). Table 1. Data for Standard Calibration Curve KMN04 Standard Absorbance at 525 nm (grams/Liter) 0.008 0.10437 0.158 0.20197 0.316 0.45288 0.474 0.68232 0.632 0.89361 Table 2. Data for KMN04 Solution of Unknown Conc. Sample of Unknown Conc. Absorbance at 525 nm Undiluted 0.95423 KMN04 Diluted KMNO4 (50% dilution) 0.46514 Which of the following linear equation for the standard calibration curve is generated from Table 1? O y= 1.3179x + 0.04845 O y= 0.74923x – 0.03231 O y= 0.04848x + 1.3179 y= 0.03231x – 0.74923
Transcribed Image Text:Quèstion 19 A solution of potassium permanganate of unknown concentration was analyzed against a standard of various concentrations. Refer to the following data set to answer the succeeding questions (MM KMNO4 = 158.034 g/mol). Table 1. Data for Standard Calibration Curve KMN04 Standard Absorbance at 525 nm (grams/Liter) 0.008 0.10437 0.158 0.20197 0.316 0.45288 0.474 0.68232 0.632 0.89361 Table 2. Data for KMN04 Solution of Unknown Conc. Sample of Unknown Conc. Absorbance at 525 nm Undiluted 0.95423 KMN04 Diluted KMNO4 (50% dilution) 0.46514 Which of the following linear equation for the standard calibration curve is generated from Table 1? O y= 1.3179x + 0.04845 O y= 0.74923x – 0.03231 O y= 0.04848x + 1.3179 y= 0.03231x – 0.74923
What is the concentration of the undiluted KMNO4 solution? O 1.6872 g/L O 0.4872 g/L O 6.872 g/L O 0.6872 g/L
Transcribed Image Text:What is the concentration of the undiluted KMNO4 solution? O 1.6872 g/L O 0.4872 g/L O 6.872 g/L O 0.6872 g/L
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