Question 19A 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 CurveKMN04StandardAbsorbance at 525 nm(grams/Liter)0.0080.104370.1580.201970.3160.452880.4740.682320.6320.89361Table 2. Data for KMno4 Solution of Unknown Conc.Sample of Unknown Conc.Absorbance at 525 nmUndiluted KMN040.95423Diluted KMNO4 (50% dilution)0.46514Which of the following linear equation for the standard calibration curve is generated from Table 1?O y= 1.3179x + 0.04845O y= 0.74923x – 0.03231O y= 0.04848x + 1.3179O y= 0.03231x – 0.74923

Question 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 0.45288 0.68232 0.316 0.474 0.632 0.89361 Table 2. Data for KMN04 Solution of Unknown Conc. Sample of Unknown Conc. Undiluted KMNO4 Diluted KMNO, (50% dilution) Absorbance at 525 nm 0.95423 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 O y= 0.03231x - 0.74923

Question 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 0.45288 0.68232 0.316 0.474 0.632 0.89361 Table 2. Data for KMN04 Solution of Unknown Conc. Sample of Unknown Conc. Undiluted KMNO4 Diluted KMNO, (50% dilution) Absorbance at 525 nm 0.95423 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 O y= 0.03231x - 0.74923

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter17: Electrochemistry

Section: Chapter Questions

Problem 80AP

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