(a) Interpretation: The effect of increase in the flow rate on the elution time of supercritical carbon dioxide in an SFC experiment is to be explained at constant pressure and temperature. Concept introduction: The time that falls in between the entry of the solute into the column and the starting of elution of the solute is termed as the elution time. There are in total three factors that affect the elution time such as flow rate, pressure and temperature.

Question

Which of the following describes a gradient elution process? stationary phase has varying concentration mobile phase has varying concentration stationary phase has static concentration mobile phase has static concentration

Answer 1

Question

Chapter 29, Problem 29.7QAP

Interpretation Introduction

(a)

Interpretation:

The effect of increase in the flow rate on the elution time of supercritical carbon dioxide in an SFC experiment is to be explained at constant pressure and temperature.

Concept introduction:

The time that falls in between the entry of the solute into the column and the starting of elution of the solute is termed as the elution time. There are in total three factors that affect the elution time such as flow rate, pressure and temperature.

Interpretation Introduction

(b)

Interpretation:

The effect of increased pressure on the elution time of supercritical carbon dioxide in an SFC experiment is to be explained at constant pressure and temperature.

Concept introduction:

The time that falls in between the entry of the solute into the column and the starting of elution of the solute is termed as the elution time. There are in total three factors that affect the elution time such as flow rate, pressure and temperature.

Interpretation Introduction

(c)

Interpretation:

The effect of increased temperature on the elution time of supercritical carbon dioxide in an SFC experiment is to be explained at constant pressure and temperature.

Concept introduction:

The time that falls in between the entry of the solute into the column and the starting of elution of the solute is termed as the elution time. There are in total three factors that affect the elution time such as flow rate, pressure and temperature.

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Which of the following describes a gradient elution process? stationary phase has varying concentration mobile phase has varying concentration stationary phase has static concentration mobile phase has static concentration

(a) The researchers are requested to prepare a 5.23 mol dm³ of concentration of Sodium Thiosulphate for the laboratory. The researchers have measured the concentration of the solution prepared by using the Sodium Thiosulphate Concentration Monitor. The result of the experiments is shown in Table 1. Table 1 Reading (M) Researcher Equipment Type Average 3 1 АВС-1 4.75 4.98 4.66 4.80 Y АВС-2 5.40 5.20 5.30 5.30 Z АВС-3 3.45 2.58 4.52 3.52 i. Based on the Table 1, conclude the results obtained by the researchers. ii. Define the metrology term: Error. iii. Calculate the error percentage obtained by each researchers.

The air in a recently used classroom 9m x 7m x 9m tested 0.12% carbon dioxide. How many cubic meters of fresh air must be admitted per minute in order that 10 minutes later it shall contain not over 0.06% carbon dioxide. Fresh air contains 0.04% carbon dioxide. Assumeimmediate mixing of fresh with stale air. (A) 14 (B) 11 (C) 15 (D) 19 (E) 17

Answer 2

Question

Chapter 29, Problem 29.7QAP

Interpretation Introduction

(a)

Interpretation:

The effect of increase in the flow rate on the elution time of supercritical carbon dioxide in an SFC experiment is to be explained at constant pressure and temperature.

Concept introduction:

The time that falls in between the entry of the solute into the column and the starting of elution of the solute is termed as the elution time. There are in total three factors that affect the elution time such as flow rate, pressure and temperature.

Interpretation Introduction

(b)

Interpretation:

The effect of increased pressure on the elution time of supercritical carbon dioxide in an SFC experiment is to be explained at constant pressure and temperature.

Concept introduction:

The time that falls in between the entry of the solute into the column and the starting of elution of the solute is termed as the elution time. There are in total three factors that affect the elution time such as flow rate, pressure and temperature.

Interpretation Introduction

(c)

Interpretation:

The effect of increased temperature on the elution time of supercritical carbon dioxide in an SFC experiment is to be explained at constant pressure and temperature.

Concept introduction:

The time that falls in between the entry of the solute into the column and the starting of elution of the solute is termed as the elution time. There are in total three factors that affect the elution time such as flow rate, pressure and temperature.

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Answer 3

Question

Chapter 29, Problem 29.7QAP

Interpretation Introduction

(a)

Interpretation:

The effect of increase in the flow rate on the elution time of supercritical carbon dioxide in an SFC experiment is to be explained at constant pressure and temperature.

Concept introduction:

The time that falls in between the entry of the solute into the column and the starting of elution of the solute is termed as the elution time. There are in total three factors that affect the elution time such as flow rate, pressure and temperature.

Interpretation Introduction

(b)

Interpretation:

The effect of increased pressure on the elution time of supercritical carbon dioxide in an SFC experiment is to be explained at constant pressure and temperature.

Concept introduction:

The time that falls in between the entry of the solute into the column and the starting of elution of the solute is termed as the elution time. There are in total three factors that affect the elution time such as flow rate, pressure and temperature.

Interpretation Introduction

(c)

Interpretation:

The effect of increased temperature on the elution time of supercritical carbon dioxide in an SFC experiment is to be explained at constant pressure and temperature.

Concept introduction:

The time that falls in between the entry of the solute into the column and the starting of elution of the solute is termed as the elution time. There are in total three factors that affect the elution time such as flow rate, pressure and temperature.

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Answer 4

Question

Chapter 29, Problem 29.7QAP

Interpretation Introduction

(a)

Interpretation:

The effect of increase in the flow rate on the elution time of supercritical carbon dioxide in an SFC experiment is to be explained at constant pressure and temperature.

Concept introduction:

The time that falls in between the entry of the solute into the column and the starting of elution of the solute is termed as the elution time. There are in total three factors that affect the elution time such as flow rate, pressure and temperature.

Interpretation Introduction

(b)

Interpretation:

The effect of increased pressure on the elution time of supercritical carbon dioxide in an SFC experiment is to be explained at constant pressure and temperature.

Concept introduction:

The time that falls in between the entry of the solute into the column and the starting of elution of the solute is termed as the elution time. There are in total three factors that affect the elution time such as flow rate, pressure and temperature.

Interpretation Introduction

(c)

Interpretation:

The effect of increased temperature on the elution time of supercritical carbon dioxide in an SFC experiment is to be explained at constant pressure and temperature.

Concept introduction:

The time that falls in between the entry of the solute into the column and the starting of elution of the solute is termed as the elution time. There are in total three factors that affect the elution time such as flow rate, pressure and temperature.

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Answer 5

Chapter 29, Problem 29.7QAP

Interpretation Introduction

(a)

Interpretation:

The effect of increase in the flow rate on the elution time of supercritical carbon dioxide in an SFC experiment is to be explained at constant pressure and temperature.

Concept introduction:

The time that falls in between the entry of the solute into the column and the starting of elution of the solute is termed as the elution time. There are in total three factors that affect the elution time such as flow rate, pressure and temperature.

Interpretation Introduction

(b)

Interpretation:

The effect of increased pressure on the elution time of supercritical carbon dioxide in an SFC experiment is to be explained at constant pressure and temperature.

Concept introduction:

The time that falls in between the entry of the solute into the column and the starting of elution of the solute is termed as the elution time. There are in total three factors that affect the elution time such as flow rate, pressure and temperature.

Interpretation Introduction

(c)

Interpretation:

The effect of increased temperature on the elution time of supercritical carbon dioxide in an SFC experiment is to be explained at constant pressure and temperature.

Concept introduction:

The time that falls in between the entry of the solute into the column and the starting of elution of the solute is termed as the elution time. There are in total three factors that affect the elution time such as flow rate, pressure and temperature.

Answer 6

Chapter 29, Problem 29.7QAP

Interpretation Introduction

(a)

Interpretation:

The effect of increase in the flow rate on the elution time of supercritical carbon dioxide in an SFC experiment is to be explained at constant pressure and temperature.

Concept introduction:

The time that falls in between the entry of the solute into the column and the starting of elution of the solute is termed as the elution time. There are in total three factors that affect the elution time such as flow rate, pressure and temperature.

Answer 7

Chapter 29, Problem 29.7QAP

Interpretation Introduction

(a)

Interpretation:

The effect of increase in the flow rate on the elution time of supercritical carbon dioxide in an SFC experiment is to be explained at constant pressure and temperature.

Concept introduction:

The time that falls in between the entry of the solute into the column and the starting of elution of the solute is termed as the elution time. There are in total three factors that affect the elution time such as flow rate, pressure and temperature.

Answer 8

Interpretation Introduction

(b)

Interpretation:

The effect of increased pressure on the elution time of supercritical carbon dioxide in an SFC experiment is to be explained at constant pressure and temperature.

Concept introduction:

The time that falls in between the entry of the solute into the column and the starting of elution of the solute is termed as the elution time. There are in total three factors that affect the elution time such as flow rate, pressure and temperature.

Answer 9

Interpretation Introduction

(b)

Interpretation:

The effect of increased pressure on the elution time of supercritical carbon dioxide in an SFC experiment is to be explained at constant pressure and temperature.

Concept introduction:

The time that falls in between the entry of the solute into the column and the starting of elution of the solute is termed as the elution time. There are in total three factors that affect the elution time such as flow rate, pressure and temperature.

Answer 10

Interpretation Introduction

(c)

Interpretation:

The effect of increased temperature on the elution time of supercritical carbon dioxide in an SFC experiment is to be explained at constant pressure and temperature.

Concept introduction:

The time that falls in between the entry of the solute into the column and the starting of elution of the solute is termed as the elution time. There are in total three factors that affect the elution time such as flow rate, pressure and temperature.

Answer 11

Interpretation Introduction

(c)

Interpretation:

The effect of increased temperature on the elution time of supercritical carbon dioxide in an SFC experiment is to be explained at constant pressure and temperature.

Concept introduction:

The time that falls in between the entry of the solute into the column and the starting of elution of the solute is termed as the elution time. There are in total three factors that affect the elution time such as flow rate, pressure and temperature.

Answer 12

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Ch. 29 - Prob. 29.1QAP Ch. 29 - Prob. 29.2QAP Ch. 29 - Prob. 29.3QAP Ch. 29 - Prob. 29.4QAP Ch. 29 - Prob. 29.5QAP Ch. 29 - Prob. 29.6QAP Ch. 29 - Prob. 29.7QAP Ch. 29 - Prob. 29.8QAP Ch. 29 - Prob. 29.9QAP Ch. 29 - Prob. 29.10QAP

Chapter 29 Solutions