(a) Interpretation: The standard solution of methyl vinyl ketone results in the relative peak area of chromatograms which is shown below: Concentration MVK, mmol/L Relative Peak Area 0.500 3.76 1.50 9.16 2.50 15.03 3.50 20.42 4.50 25.33 5.50 31.97 The slope and the intercept of the least square line are to be determined. Concept introduction: The slope of a line is also known as a gradient of line which is used to define the direction and steepness of the line. The intercept line is the y-axis of a line at which point it crosses the X −axis.

Question

Can paper chromatography be used to separate and identify very volatile substances? How do I prove this.

Answer 1

Question

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter A1, Problem A1.24QAP

Interpretation Introduction

(a)

Interpretation:

The standard solution of methyl vinyl ketone results in the relative peak area of chromatograms which is shown below:

Concentration MVK, mmol/L Relative Peak Area

0.500 3.76

1.50 9.16

2.50 15.03

3.50 20.42

4.50 25.33

5.50 31.97

The slope and the intercept of the least square line are to be determined.

Concept introduction:

The slope of a line is also known as a gradient of line which is used to define the direction and steepness of the line.

The intercept line is the y-axis of a line at which point it crosses the X −axis.

Interpretation Introduction

(b)

Interpretation:

The graph for the least square line as well as experimental points is to be plotted.

Concept introduction:

The least-square method is a method in which the best result is obtained for the set data point by minimizing the sum of offset or residuals from the plot of curve statistically.

Interpretation Introduction

(c)

Interpretation:

The relative peak area of the sample containing MVK is 10.3. The concentration of MVK in the solution is to be determined.

Concept introduction:

The slope of a line is also known as a gradient of line which is used to define the direction and steepness of the line.

The intercept line is the y-axis of a line at which point it crosses the X −axis.

Interpretation Introduction

(d)

Interpretation:

It is considered that the result obtained from (d) is representing the single measurement as well as the mean of four measurements. The respective absolute and relative standard deviation is to be determined.

Concept introduction:

The standard deviation method is used for the quantification of the amount of variation or for the dispersion for the set of the data values.

Interpretation Introduction

(e)

Interpretation:

The calculation for the section (c) and (d) is to be repeated when the peak area of the sample is 22.8.

Concept introduction:

The standard deviation method is used for the quantification of the amount of variation or for the dispersion for the set of the data values.

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Can paper chromatography be used to separate and identify very volatile substances? How do I prove this.

A scientist wishes to measure the concentration of methyl benzoate in a plant stream by gas chromatography. He prepares a sample of butyl benzoate to use as an internal standard. The results of a preliminary run, which used a solution known to contain 1.37 mg/mL of methyl benzoate (peak A) and 1.51 mg/mL of butyl benzoate (peak B), are shown. The area of peak A is determined to be 3.40×102 and the area of peak B is determined to be 398 measured in arbitrary units by the computer. To measure the sample, 1.00 mL of a standard sample of butyl benzoate containing 2.49 mg/mL is mixed with 1.00 mL of the plant stream material. Analysis of the mixture gave a peak area of 437 for peak A and 415 for peak B. What is the concentration of methyl benzoate in the plant stream?

a sample of butyl benzoate is prepared to use as an internal standard. The results of a preliminary run, which used a solution known to contain 1.53 mg/mL of methyl benzoate (peak A) and1.68 mg/mL of butyl benzoate (peak B), are shown. The area of peak A is determined to be 352 and the area of peak B is determined to be 416 measured in arbitrary units by the computer. To measure the sample, 1.00 mL of a standard sample of butyl benzoate containing 2.19 mg/mL is mixed with 1.00 mL of the plant stream material. Analysis of the mixture gave a peak area of 449 for peak A and 411 for peak B. What is the concentration of methyl benzoate in the plant stream? concentration of methyl benzoate = ____________________ mg/mL

Answer 2

Question

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter A1, Problem A1.24QAP

Interpretation Introduction

(a)

Interpretation:

The standard solution of methyl vinyl ketone results in the relative peak area of chromatograms which is shown below:

Concentration MVK, mmol/L Relative Peak Area

0.500 3.76

1.50 9.16

2.50 15.03

3.50 20.42

4.50 25.33

5.50 31.97

The slope and the intercept of the least square line are to be determined.

Concept introduction:

The slope of a line is also known as a gradient of line which is used to define the direction and steepness of the line.

The intercept line is the y-axis of a line at which point it crosses the X −axis.

Interpretation Introduction

(b)

Interpretation:

The graph for the least square line as well as experimental points is to be plotted.

Concept introduction:

The least-square method is a method in which the best result is obtained for the set data point by minimizing the sum of offset or residuals from the plot of curve statistically.

Interpretation Introduction

(c)

Interpretation:

The relative peak area of the sample containing MVK is 10.3. The concentration of MVK in the solution is to be determined.

Concept introduction:

The slope of a line is also known as a gradient of line which is used to define the direction and steepness of the line.

The intercept line is the y-axis of a line at which point it crosses the X −axis.

Interpretation Introduction

(d)

Interpretation:

It is considered that the result obtained from (d) is representing the single measurement as well as the mean of four measurements. The respective absolute and relative standard deviation is to be determined.

Concept introduction:

The standard deviation method is used for the quantification of the amount of variation or for the dispersion for the set of the data values.

Interpretation Introduction

(e)

Interpretation:

The calculation for the section (c) and (d) is to be repeated when the peak area of the sample is 22.8.

Concept introduction:

The standard deviation method is used for the quantification of the amount of variation or for the dispersion for the set of the data values.

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Answer 3

Question

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter A1, Problem A1.24QAP

Interpretation Introduction

(a)

Interpretation:

The standard solution of methyl vinyl ketone results in the relative peak area of chromatograms which is shown below:

Concentration MVK, mmol/L Relative Peak Area

0.500 3.76

1.50 9.16

2.50 15.03

3.50 20.42

4.50 25.33

5.50 31.97

The slope and the intercept of the least square line are to be determined.

Concept introduction:

The slope of a line is also known as a gradient of line which is used to define the direction and steepness of the line.

The intercept line is the y-axis of a line at which point it crosses the X −axis.

Interpretation Introduction

(b)

Interpretation:

The graph for the least square line as well as experimental points is to be plotted.

Concept introduction:

The least-square method is a method in which the best result is obtained for the set data point by minimizing the sum of offset or residuals from the plot of curve statistically.

Interpretation Introduction

(c)

Interpretation:

The relative peak area of the sample containing MVK is 10.3. The concentration of MVK in the solution is to be determined.

Concept introduction:

The slope of a line is also known as a gradient of line which is used to define the direction and steepness of the line.

The intercept line is the y-axis of a line at which point it crosses the X −axis.

Interpretation Introduction

(d)

Interpretation:

It is considered that the result obtained from (d) is representing the single measurement as well as the mean of four measurements. The respective absolute and relative standard deviation is to be determined.

Concept introduction:

The standard deviation method is used for the quantification of the amount of variation or for the dispersion for the set of the data values.

Interpretation Introduction

(e)

Interpretation:

The calculation for the section (c) and (d) is to be repeated when the peak area of the sample is 22.8.

Concept introduction:

The standard deviation method is used for the quantification of the amount of variation or for the dispersion for the set of the data values.

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Answer 4

Question

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter A1, Problem A1.24QAP

Interpretation Introduction

(a)

Interpretation:

The standard solution of methyl vinyl ketone results in the relative peak area of chromatograms which is shown below:

Concentration MVK, mmol/L Relative Peak Area

0.500 3.76

1.50 9.16

2.50 15.03

3.50 20.42

4.50 25.33

5.50 31.97

The slope and the intercept of the least square line are to be determined.

Concept introduction:

The slope of a line is also known as a gradient of line which is used to define the direction and steepness of the line.

The intercept line is the y-axis of a line at which point it crosses the X −axis.

Interpretation Introduction

(b)

Interpretation:

The graph for the least square line as well as experimental points is to be plotted.

Concept introduction:

The least-square method is a method in which the best result is obtained for the set data point by minimizing the sum of offset or residuals from the plot of curve statistically.

Interpretation Introduction

(c)

Interpretation:

The relative peak area of the sample containing MVK is 10.3. The concentration of MVK in the solution is to be determined.

Concept introduction:

The slope of a line is also known as a gradient of line which is used to define the direction and steepness of the line.

The intercept line is the y-axis of a line at which point it crosses the X −axis.

Interpretation Introduction

(d)

Interpretation:

It is considered that the result obtained from (d) is representing the single measurement as well as the mean of four measurements. The respective absolute and relative standard deviation is to be determined.

Concept introduction:

The standard deviation method is used for the quantification of the amount of variation or for the dispersion for the set of the data values.

Interpretation Introduction

(e)

Interpretation:

The calculation for the section (c) and (d) is to be repeated when the peak area of the sample is 22.8.

Concept introduction:

The standard deviation method is used for the quantification of the amount of variation or for the dispersion for the set of the data values.

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Answer 5

Chapter A1, Problem A1.24QAP

Interpretation Introduction

(a)

Interpretation:

The standard solution of methyl vinyl ketone results in the relative peak area of chromatograms which is shown below:

Concentration MVK, mmol/L Relative Peak Area

0.500 3.76

1.50 9.16

2.50 15.03

3.50 20.42

4.50 25.33

5.50 31.97

The slope and the intercept of the least square line are to be determined.

Concept introduction:

The slope of a line is also known as a gradient of line which is used to define the direction and steepness of the line.

The intercept line is the y-axis of a line at which point it crosses the X −axis.

Interpretation Introduction

(b)

Interpretation:

The graph for the least square line as well as experimental points is to be plotted.

Concept introduction:

The least-square method is a method in which the best result is obtained for the set data point by minimizing the sum of offset or residuals from the plot of curve statistically.

Interpretation Introduction

(c)

Interpretation:

The relative peak area of the sample containing MVK is 10.3. The concentration of MVK in the solution is to be determined.

Concept introduction:

The slope of a line is also known as a gradient of line which is used to define the direction and steepness of the line.

The intercept line is the y-axis of a line at which point it crosses the X −axis.

Interpretation Introduction

(d)

Interpretation:

It is considered that the result obtained from (d) is representing the single measurement as well as the mean of four measurements. The respective absolute and relative standard deviation is to be determined.

Concept introduction:

The standard deviation method is used for the quantification of the amount of variation or for the dispersion for the set of the data values.

Interpretation Introduction

(e)

Interpretation:

The calculation for the section (c) and (d) is to be repeated when the peak area of the sample is 22.8.

Concept introduction:

The standard deviation method is used for the quantification of the amount of variation or for the dispersion for the set of the data values.

Answer 6

Chapter A1, Problem A1.24QAP

Interpretation Introduction

(a)

Interpretation:

The standard solution of methyl vinyl ketone results in the relative peak area of chromatograms which is shown below:

Concentration MVK, mmol/L Relative Peak Area

0.500 3.76

1.50 9.16

2.50 15.03

3.50 20.42

4.50 25.33

5.50 31.97

The slope and the intercept of the least square line are to be determined.

Concept introduction:

The slope of a line is also known as a gradient of line which is used to define the direction and steepness of the line.

The intercept line is the y-axis of a line at which point it crosses the X −axis.

Answer 7

Chapter A1, Problem A1.24QAP

Interpretation Introduction

(a)

Interpretation:

The standard solution of methyl vinyl ketone results in the relative peak area of chromatograms which is shown below:

Concentration MVK, mmol/L Relative Peak Area

0.500 3.76

1.50 9.16

2.50 15.03

3.50 20.42

4.50 25.33

5.50 31.97

The slope and the intercept of the least square line are to be determined.

Concept introduction:

The slope of a line is also known as a gradient of line which is used to define the direction and steepness of the line.

The intercept line is the y-axis of a line at which point it crosses the X −axis.

Answer 8

Interpretation Introduction

(b)

Interpretation:

The graph for the least square line as well as experimental points is to be plotted.

Concept introduction:

The least-square method is a method in which the best result is obtained for the set data point by minimizing the sum of offset or residuals from the plot of curve statistically.

Answer 9

Interpretation Introduction

(b)

Interpretation:

The graph for the least square line as well as experimental points is to be plotted.

Concept introduction:

The least-square method is a method in which the best result is obtained for the set data point by minimizing the sum of offset or residuals from the plot of curve statistically.

Answer 10

Interpretation Introduction

(c)

Interpretation:

The relative peak area of the sample containing MVK is 10.3. The concentration of MVK in the solution is to be determined.

Concept introduction:

The slope of a line is also known as a gradient of line which is used to define the direction and steepness of the line.

The intercept line is the y-axis of a line at which point it crosses the X −axis.

Answer 11

Interpretation Introduction

(c)

Interpretation:

The relative peak area of the sample containing MVK is 10.3. The concentration of MVK in the solution is to be determined.

Concept introduction:

The slope of a line is also known as a gradient of line which is used to define the direction and steepness of the line.

The intercept line is the y-axis of a line at which point it crosses the X −axis.

Answer 12

Interpretation Introduction

(d)

Interpretation:

It is considered that the result obtained from (d) is representing the single measurement as well as the mean of four measurements. The respective absolute and relative standard deviation is to be determined.

Concept introduction:

The standard deviation method is used for the quantification of the amount of variation or for the dispersion for the set of the data values.

Answer 13

Interpretation Introduction

(d)

Interpretation:

It is considered that the result obtained from (d) is representing the single measurement as well as the mean of four measurements. The respective absolute and relative standard deviation is to be determined.

Concept introduction:

The standard deviation method is used for the quantification of the amount of variation or for the dispersion for the set of the data values.

Answer 14

Interpretation Introduction

(e)

Interpretation:

The calculation for the section (c) and (d) is to be repeated when the peak area of the sample is 22.8.

Concept introduction:

The standard deviation method is used for the quantification of the amount of variation or for the dispersion for the set of the data values.

Answer 15

Interpretation Introduction

(e)

Interpretation:

The calculation for the section (c) and (d) is to be repeated when the peak area of the sample is 22.8.

Concept introduction:

The standard deviation method is used for the quantification of the amount of variation or for the dispersion for the set of the data values.

Answer 16

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Ch. A1 - Prob. A1.1QAP Ch. A1 - Prob. A1.2QAP Ch. A1 - Prob. A1.3QAP Ch. A1 - Prob. A1.4QAP Ch. A1 - Prob. A1.5QAP Ch. A1 - Prob. A1.6QAP Ch. A1 - Prob. A1.7QAP Ch. A1 - Prob. A1.8QAP Ch. A1 - Prob. A1.9QAP Ch. A1 - Prob. A1.10QAP

Concentration MVK, mmol/L	Relative Peak Area
0.500	3.76
1.50	9.16
2.50	15.03
3.50	20.42
4.50	25.33
5.50	31.97

(e) Interpretation: The calculation for the section (c) and (d) is to be repeated when the peak area of the sample is 22.8. Concept introduction: The standard deviation method is used for the quantification of the amount of variation or for the dispersion for the set of the data values.

Chapter A1 Solutions

(e)

Interpretation:

The calculation for the section (c) and (d) is to be repeated when the peak area of the sample is 22.8.

Concept introduction:

The standard deviation method is used for the quantification of the amount of variation or for the dispersion for the set of the data values.