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
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
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Chapter1: Chemical Foundations
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![Using the linear regression equation on the previous question, what is the concentration of the diluted KMNO4 solution?
O 316.15 mg/L
O 216.15 mg/L
300.20 mg/L
O 416.15 mg/L](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc491bbb5-921f-4dc7-ba79-8af93725e0d3%2F3fdb6e98-8c1a-4c84-ae50-5d83ced73183%2F3mjral_processed.png&w=3840&q=75)
Transcribed Image Text:Using the linear regression equation on the previous question, what is the concentration of the diluted KMNO4 solution?
O 316.15 mg/L
O 216.15 mg/L
300.20 mg/L
O 416.15 mg/L
![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](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc491bbb5-921f-4dc7-ba79-8af93725e0d3%2F3fdb6e98-8c1a-4c84-ae50-5d83ced73183%2F0wx17vd_processed.png&w=3840&q=75)
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
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