Exp 6 Discussion Questions - S2024
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Jun 14, 2024
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Experiment 6 Discussion Questions
Upload your completed discussion questions with your scanned “data & observations” for this experiment
STUDENT NAME: ________________________________ (
please type your name here)
By typing your name above:
I confirm that this report is based on my original work and that I did not work with
another student (past or present) when composing this report. Reports without a name will not be eligible for credit.
Question 1 (2 marks). Increasing the concentration of one of the starting materials helps drive the
equilibrium of a Fischer Esterification reaction towards the product side.
In
experiment 6,
glacial acetic acid
is added in a 2.5-fold excess because it is easier to remove during “work-up”.
In 2-3 sentences
, explain why excess acetic acid would be easier to remove than excess 1-pentanol using the
“work-up” steps (Part II Steps 5–7) outlined in this experiment.
Question 2 (2 marks).
Adding excessive drying agent can lead to a significant loss of your desired product. (a)
In 1 sentence
, explain the purpose of washing the organic layer with saturated NaCl
aq (brine)
during the
liquid-liquid extraction in Exp 6. (b)
In
1-2 sentences
, explain why adding too much drying agent causes significantly more product loss
in
Exp 6 than if too much was added during Exp 1 and/or Exp 3.
© UBC Chemistry. Do not copy, reproduce, or distribute. This question is part of an assessment that is to be completed individually and without any assistance.
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[References]
Use the References to access important values if needed for this question.
Taking logarithms and antilogarithms is necessary to solve many chemistry problems. For practice, complete the following table, where N is a number.
log N
7.92
1.867
-1.402
Submit Answer
Retry Entire Group
4 more group attempts remaining
Previous
Next
Save and Exit
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Answer question 1 please
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omfg answer this
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Please help me complete question 1,2,and 3
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2 What methods are used to sep X
G In Part Il of experiment 5, a 1:1: X
+
u/ultra/courses/_393452_1/cl/outline
* Question Completion Status:
QUESTION 3
After you complete the second step, you will be left with a clear colorless liquid. What should be done to the liquid to finish the separation?
O Heat the mixture to evaporate the liquid
O Add a base to neutralize the solution.
O Nothing - you are done since you have a pure, clear, colorless substance
O Add the residue back to the solution and dry.
QUESTION 4
In Part II of experiment 5, a 1:1:1 mixture of sand, salt, and salicylic acid must be separated. Order the following steps necessary to
separate this mixture into three pure, dry solids.
Filter the liquid leaving a filtrate with just salt dissolved and a residue of sand.
v Add hot water to the residue obtained in two steps prior to this one.
Filter the liquid leaving a filtrate with just salicylic acid dissolved and a residue of salt and sand.
v Heat the filtrate obtained in two…
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In general,the color that we see is __to the color absorbed.
What words should be put in the blank?
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■ True or False: in a TOF analyzer, a fragment of low mass reaches the
detector first
▪ In GCMS when we know what analytes we are measuring we use
not know what analytes are in the sample we use
than scan.
▪ A) Scan; SIM
■ B)SIM; scan
• C) SIM; SIM
mode. When we do
mode. SIM allows greater sensitivity
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This is not graded, it’s for practice. Answer all of the questions.
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PL03
141 PM Sun Apr 17
24) Order: Potassium Chloride 75meq p.o. daily
Supply: potassium Chloride
15 meq per 10 mL
220 mL
Calculate the dosage in fl-oZ
Connect
CAPS
4 Ch
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F1
F3
F4
F5
F6
F7
F8
F11
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Instructions You are required to produce a short lab report using the information given in the accompanying document, ‘Lab report assessment_student data’. This document introduces an experiment, and also provides a set of experimental data for this experiment. You are required to use this data to perform steps 8 and 9 of the procedure. This includes calculations of a particular value, and then comparison to the true value. Consider any experimental errors when comparing calculated values and true values. Your report should be between 300 and 500 words (including all table contents and titles of tables and graphs). Your lab report should consist of three sections only: • Experimental • Results and Discussion • Conclusion You do NOT need to include an introduction section. Your experimental section should be written in appropriate lab report format, (passive voice, 3 rd person, in paragraphs). Your results and discussion section should contain the data presented in table format, and…
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atent
OWLV2 | Online teaching and lea X
cvg.cengagenow.com/ilrn/takeAssignment/takeCXPCompliantActivity.do?locator=Dassignment-take
人☆
CHAPTER 1A - LET'S REVIEW: THE TOOLS OF QUANTITATIVE CHEMISTRY
Study
Progress
Previous Page 3 of 3
Submit Quiz
The aluminum in a package containing 77 ft" of kitchen foil weighs approximately 19 ounces. Aluminum has a density of 2.70 g/cm. What is the approximate thickness of
the aluminum foil in millimeters? (1 ounce =
28.4 g. 1 ft 12 in, 1 in = 2.54 cm)
%3D
Thickness =
mm
O US 3:2
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A 0.743 gram sample of copper is carried through the steps of this experiment. At the completion of the last step, 0.214 grams of copper are recovered. What is the percent recovery of the copper metal?
_____________ unit________
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口
A docs.google.com
Classroom | Google for Education
Alchemy Lesson 20 & 21 Worksheet
Andres Carrill
Andres Carrillo - Alchemy Lessons 20 & 21 Worksheet
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E = E = EE E - E E X
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2
3
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5
AIV-20: Getting Connected (Writing lonic Compounds)
Part 1: Putting together lonic Compounds
lonic compound
Metal
Number of
cation
nonmetal
number of
anion
total
total charge = 0
valence
valence
number of
electrons
electrons
valence
electrons
NaF, sodium fluoride
Na
Na +
(+1)+(-1) = 0
F-
8.
MgO, magnesium oxide
Mg
02-
(+2) + (-2) = 0
MgCl2, magnesium
chloride
Mg
CI
7
16
(+2) + 2(-1) = 0
Ne, neon
Ne
8
BeF2, beryllium fluoride
Be
MgS, magnesium sulfide
CaCl,, calcium chloride
Na
Br
K
Se
Al
Al203, aluminum oxide
Al
Al
F
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Ab GL B
art 3 SHOW WORK
ond Shipp: Attempt 1
Hu/d21/Ims/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou=5956136&isprv=&drc=0&qi=5726766&cfql=
Answer
units
▷ Add attachments to support your work
Question 4 (0.5 points)
SHOW YOUR WORK.
G
**N*-*OO
If 35.45 mL of 0.8121 M sodium carbonate solution reacts with excess lead (III)
nitrate solution to form aqueous sodium nitrate and solid lead (III) carbonate, how
many grams of lead (III) carbonate is formed?
On your paper with your name and date:
1. Go from ionic compound name to formula (review Chp 5 as much as needed)
2. Balance the equation (review Chp 7 if needed).
3. Do the calculation showing ALL units, just like I did in solution stoichiometry
lecture.
a #
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Quèstion 6
Select the statement that is not supported by the following equation:
q=0=(mwater)(Cwater)(ATwater)+ (mmetal)(Cmetal)( ATmetal)
The total change in heat is the sum of the changes in heat of water and a metal.
Energy is conserved.
Energy is transferred between water and a metal.
Energy is lost during a calorimetry experiment.
A Moving to another question will save this response.
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6.
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terface/acellus_engine.htm?ClassID=1467683063
Use the data below to determine the
mass ratio of iron to oxygen for
compound 2.
Compound
1
2
Et
onal Academy of Science. All Rights Reserved.
Mass Fe
(grams)
15.55
20.98
[20:1
Enter the answer that belongs in the green box.
Iron Ratio Cmpd 2
Mass O
(grams)
4.45
9.02
Sh
Enter
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Routine Chemical Tests for Urine - Word
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COLLEGE OF HEALTH SCIENCES
RESULTS AND OBSERVA TIONS:
PARTI: BENEDICTS TEST FOR REDUCING SUGARS
田
TUBE
PATIENT
COLOR
RESULT and
NO.
Before: Blue-green
OBSERVATION
WHITE PRECIPITATE:
1
Normal Patient 1
After: Greenish brown
2
Normal Patient 2
Before: Blue
LIGHT GREEN
After: Green
PRECIPITA TE:
3
WHILTE AND YELLOW
Pathologic Patient 1
Before: Blue
PRECIPITATE:
After: Green
BRICK RED
Before: Blue-green
After: Brick Red
Pathologic Patient 2
PRECIPITATE:
Generalization:
Page 5 of 8
947 words
English (Philippines)
K…
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can you please do it
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Answer question 7 please
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(please type answer)
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Homework AX
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Macmillan Learning
Web 2.0 scientific calculator
Williston Forge Jero...
Assignment Score:
Question 17 of 21 >
mass:
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Hint
Hydrogen gas holds promise as an alternative fuel to gasoline. Calculate the mass of H₂ gas in a 38.3 L fuel tank at a pressu
2.42 x 104 mmHg and a temperature of 17.4 °C.
Paraphrasing Toof
Check Answer
Attempt 4
C
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Related Questions
- [References] Use the References to access important values if needed for this question. Taking logarithms and antilogarithms is necessary to solve many chemistry problems. For practice, complete the following table, where N is a number. log N 7.92 1.867 -1.402 Submit Answer Retry Entire Group 4 more group attempts remaining Previous Next Save and Exitarrow_forwardAnswer question 1 pleasearrow_forwardomfg answer thisarrow_forward
- Please help me complete question 1,2,and 3arrow_forward2 What methods are used to sep X G In Part Il of experiment 5, a 1:1: X + u/ultra/courses/_393452_1/cl/outline * Question Completion Status: QUESTION 3 After you complete the second step, you will be left with a clear colorless liquid. What should be done to the liquid to finish the separation? O Heat the mixture to evaporate the liquid O Add a base to neutralize the solution. O Nothing - you are done since you have a pure, clear, colorless substance O Add the residue back to the solution and dry. QUESTION 4 In Part II of experiment 5, a 1:1:1 mixture of sand, salt, and salicylic acid must be separated. Order the following steps necessary to separate this mixture into three pure, dry solids. Filter the liquid leaving a filtrate with just salt dissolved and a residue of sand. v Add hot water to the residue obtained in two steps prior to this one. Filter the liquid leaving a filtrate with just salicylic acid dissolved and a residue of salt and sand. v Heat the filtrate obtained in two…arrow_forwardIn general,the color that we see is __to the color absorbed. What words should be put in the blank?arrow_forward
- ■ True or False: in a TOF analyzer, a fragment of low mass reaches the detector first ▪ In GCMS when we know what analytes we are measuring we use not know what analytes are in the sample we use than scan. ▪ A) Scan; SIM ■ B)SIM; scan • C) SIM; SIM mode. When we do mode. SIM allows greater sensitivityarrow_forwardThis is not graded, it’s for practice. Answer all of the questions.arrow_forwardPL03 141 PM Sun Apr 17 24) Order: Potassium Chloride 75meq p.o. daily Supply: potassium Chloride 15 meq per 10 mL 220 mL Calculate the dosage in fl-oZ Connect CAPS 4 Ch ** F12 Esc F1 F3 F4 F5 F6 F7 F8 F11 23 $ % & 3 4. 7 9 %3D Q W Y Uarrow_forward
- Instructions You are required to produce a short lab report using the information given in the accompanying document, ‘Lab report assessment_student data’. This document introduces an experiment, and also provides a set of experimental data for this experiment. You are required to use this data to perform steps 8 and 9 of the procedure. This includes calculations of a particular value, and then comparison to the true value. Consider any experimental errors when comparing calculated values and true values. Your report should be between 300 and 500 words (including all table contents and titles of tables and graphs). Your lab report should consist of three sections only: • Experimental • Results and Discussion • Conclusion You do NOT need to include an introduction section. Your experimental section should be written in appropriate lab report format, (passive voice, 3 rd person, in paragraphs). Your results and discussion section should contain the data presented in table format, and…arrow_forwardatent OWLV2 | Online teaching and lea X cvg.cengagenow.com/ilrn/takeAssignment/takeCXPCompliantActivity.do?locator=Dassignment-take 人☆ CHAPTER 1A - LET'S REVIEW: THE TOOLS OF QUANTITATIVE CHEMISTRY Study Progress Previous Page 3 of 3 Submit Quiz The aluminum in a package containing 77 ft" of kitchen foil weighs approximately 19 ounces. Aluminum has a density of 2.70 g/cm. What is the approximate thickness of the aluminum foil in millimeters? (1 ounce = 28.4 g. 1 ft 12 in, 1 in = 2.54 cm) %3D Thickness = mm O US 3:2arrow_forwardA 0.743 gram sample of copper is carried through the steps of this experiment. At the completion of the last step, 0.214 grams of copper are recovered. What is the percent recovery of the copper metal? _____________ unit________arrow_forward
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- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning

Introduction to General, Organic and Biochemistry
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ISBN:9781285869759
Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
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