Homework Help is Here – Start Your Trial Now!
Science
Chemistry
7. A student did a distillation experiment using 40 % aqueous ethanol and presented his result of distillation curve in his lab report as shown below: 100 90 80 70 60 50 40 30 10 20 30 40 Volume Collected (mL) What would be his possible conclusion about his experiment? 1). a good separation of ethanol from water was achieved. 2). the initial distillation temperature was set a little high. 3). the distillation temperature was not well controlled. 4). the concentration of ethanol was too high in the initial solution. 8. What is the main purpose of a fractional column in fractional distillation? 1). to heat the liquid being distilled efficiently 2). to provide more surface area for vapor to condense. 3). to speed up the distillation of the liquid 4). to completely condense the vapor to form a liquid 9. Why is it preferable to allow cold water to enter at the bottom of a water condenser and exit at the top than vice versa? 1). to effectively condense the vapor to form a liquid 2). to allow the water to flow unrestrictedly 3). to separate the liquids being distilled 4). to predict the boiling point of the liquid Temperature (°C)

7. A student did a distillation experiment using 40 % aqueous ethanol and presented his result of distillation curve in his lab report as shown below: 100 90 80 70 60 50 40 30 10 20 30 40 Volume Collected (mL) What would be his possible conclusion about his experiment? 1). a good separation of ethanol from water was achieved. 2). the initial distillation temperature was set a little high. 3). the distillation temperature was not well controlled. 4). the concentration of ethanol was too high in the initial solution. 8. What is the main purpose of a fractional column in fractional distillation? 1). to heat the liquid being distilled efficiently 2). to provide more surface area for vapor to condense. 3). to speed up the distillation of the liquid 4). to completely condense the vapor to form a liquid 9. Why is it preferable to allow cold water to enter at the bottom of a water condenser and exit at the top than vice versa? 1). to effectively condense the vapor to form a liquid 2). to allow the water to flow unrestrictedly 3). to separate the liquids being distilled 4). to predict the boiling point of the liquid Temperature (°C)

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
See similar textbooks
icon
Related questions
Question

Can you please answer these three sub problems 

7. A student did a distillation experiment using 40 % aqueous ethanol and presented his result of distillation curve in his lab report as shown below: 100 90 80 70 60 50 40 30 10 20 30 40 Volume Collected (mL) What would be his possible conclusion about his experiment? 1). a good separation of ethanol from water was achieved. 2). the initial distillation temperature was set a little high. 3). the distillation temperature was not well controlled. 4). the concentration of ethanol was too high in the initial solution. 8. What is the main purpose of a fractional column in fractional distillation? 1). to heat the liquid being distilled efficiently 2). to provide more surface area for vapor to condense. 3). to speed up the distillation of the liquid 4). to completely condense the vapor to form a liquid 9. Why is it preferable to allow cold water to enter at the bottom of a water condenser and exit at the top than vice versa? 1). to effectively condense the vapor to form a liquid 2). to allow the water to flow unrestrictedly 3). to separate the liquids being distilled 4). to predict the boiling point of the liquid Temperature (°C)
Transcribed Image Text:7. A student did a distillation experiment using 40 % aqueous ethanol and presented his result of distillation curve in his lab report as shown below: 100 90 80 70 60 50 40 30 10 20 30 40 Volume Collected (mL) What would be his possible conclusion about his experiment? 1). a good separation of ethanol from water was achieved. 2). the initial distillation temperature was set a little high. 3). the distillation temperature was not well controlled. 4). the concentration of ethanol was too high in the initial solution. 8. What is the main purpose of a fractional column in fractional distillation? 1). to heat the liquid being distilled efficiently 2). to provide more surface area for vapor to condense. 3). to speed up the distillation of the liquid 4). to completely condense the vapor to form a liquid 9. Why is it preferable to allow cold water to enter at the bottom of a water condenser and exit at the top than vice versa? 1). to effectively condense the vapor to form a liquid 2). to allow the water to flow unrestrictedly 3). to separate the liquids being distilled 4). to predict the boiling point of the liquid Temperature (°C)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Phase Diagrams
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
SEE MORE TEXTBOOKS