(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

Time on hotplate (min) 60, 66, 68, 75, 85, 95, Mass of ZnCO3 + Filter paper (g) 3.7123, 2.7035, 2.6574, 2.5213, 2.3548, 2.239 Use the following data table and steps a-d below to calculate the concentration of the zinc carbonate. The mass of the filter paper alone (no ZnCO3) was 1.3457 g. The ZnNO3 solution (10.00 mL) was mixed with 15.00 mL of the 1.00 M Na2CO3. Calculate the mass of zinc carbonate formed. How many moles of zinc carbonate formed? Calculate the moles of zinc in the zinc nitrate solution used. Calculate the concentration of the zinc in the zinc nitrate solution.

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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Time on hotplate (min) 60, 66, 68, 75, 85, 95, Mass of ZnCO3 + Filter paper (g) 3.7123, 2.7035, 2.6574, 2.5213, 2.3548, 2.239 Use the following data table and steps a-d below to calculate the concentration of the zinc carbonate. The mass of the filter paper alone (no ZnCO3) was 1.3457 g. The ZnNO3 solution (10.00 mL) was mixed with 15.00 mL of the 1.00 M Na2CO3. Calculate the mass of zinc carbonate formed. How many moles of zinc carbonate formed? Calculate the moles of zinc in the zinc nitrate solution used. Calculate the concentration of the zinc in the zinc nitrate solution.

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A student rushed through this experiment. Describe the effect that the following procedural changes would have on the percent recovery of acetanilide. Briefly explain the basis of each answer.(a) Rather than adding 0.5-mL portions of boiling solvent to the acetanilide, the student added 5-mL portions of boiling solvent.(b) The student did not pre-heat the gravity filtration apparatus.(c) The student forgot to cool 5 mL of solvent in Part 5 and washed the crystals with room-temperature solvent.

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