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WILFRID LAURIER UNIVERSITY CH110 ASSIGNMENT 1 –
To Excel in Chemistry NAME: Fauzia Ali Hassan STUDENT NUMBER: 169-068-519 DATE SUBMITTED: 24 01,2024 Click here to enter a date. LAB SECTION: L6 Instructions
: Fill in the blanks and submit all sheets and required graphs/tables in ONE document only to be uploaded (no .pages or .heic files) to your online CH110 Lab MyLS Excel Assignment dropbox. No other lab report criteria are required for this assignment. Part 1: Simple Linear Plot •
Which set of data is plotted on the y
-axis? Volume of one mole of helium (L) the x
-axis? Temperature (K) •
Record the following information: The equation of the fitted trendline y=0.1026x -6.8464
The value of the slope of this line 0.1026 The value of the y
-intercept of this line 6.08464 •
Is the fit of the trendline to your data a good fit? (Yes or No) Yes Briefly explain your response: As my R^2 is close to 1 then it will be considered to a good fit for my data. Another reason is my data has a liner line and no a sctherefore it indicts that it a good fit. •
Determine the temperature, in Kelvin, of the gas in the cold room when it has a measured volume of 10.5 L using: a)
Extrapolating by graphical means 169 K b)
Extrapolating by using the equation of the trendline 6.36K Show your calculations for b) below: y=0.1026x-6.8464 10.5 L= 0.1026x-6.8464 10.5 L = -6.7438x Answer= -1.56 •
Include (copy and paste) your graph in this report. Be sure that your axes are properly labeled,
© Laurier Department of Chemistry and Biochemistry. No permissions for wider dissemination
.
with units, the equation of the line and the R
2
value are visible, and that your graph has an approprite title. Click here to enter text. Part 2: Using Functions •
For the Time of Diffusion versus Temperature plot, why is time plotted on the y
-axis? Since all the variables are held constant, diffusion time is shown on the y axis and since the temperature is a dependent variable as it can change at anytime. •
For the Time of Diffusion versus Temperature plot, which set of data is placed on the left in the Excel worksheet? Time of diffusion is placed on the left in the excel worksheet. •
What are the R
2
values for the four graphs? Fill-in the table below. Time vs. Temperature Time vs. ln(Temp) Time vs. (Temp)
0.5
Time vs. (Temp)
−
0.5
R
2
0.913 0.995 0.965 0.9977 •
Which plot of the four graphs produces the most linear relationship? How do you know? I believe the 4st graph has the most liner because it close to 1 more than the other graphs record. •
Record the following information: The equation of the trendline for the most linear plot y=107.94x + 1.008 The value of the slope of this line 107.94 y = 0.1026x - 6.8464
R² = 0.987
y = 0.1026x - 6.8464
R² = 0.987
0
5
10
15
20
25
30
35
150
200
250
300
350
400
Volume Of One Mole Of Helium (L)
Tempeture (K) Tempeture (K) Verses Volume Of One Of Helium (L)
© Laurier Department of Chemistry and Biochemistry. No permissions for wider dissemination
.
•
Include your graphs in this report. Be sure that your axes are properly labeled, with units, the equation of the line and the R
2
value are visible, and that your graph has an appropriate title. y = 107.94x + 1.008
R² = 0.9977
0.0000
2.0000
4.0000
6.0000
8.0000
10.0000
12.0000
0.0000 0.0100 0.0200 0.0300 0.0400 0.0500 0.0600 0.0700 0.0800 0.0900
Time Of Diffusion (ms) Temperature Dependent Inverse Square Root Temperature - Dependent Inverse Square Root Diffusion Trend Chart y = -0.0076x + 10.045
R² = 0.9134
0
2
4
6
8
10
12
Time Of Diffusion (ms) Temperature (K) Thermal Diffusion: Temperature (K) Verses Time Of Diffusion ( ms) trend chart.
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MRI machines primarily work using ____.a. The nuclei of carbons in fatty acid chainsb. The nuclei of oxygen atoms from water molecules in the bodyc. The nuclei of hydrogen atoms from water molecules in the bodyd. The nuclei of radioactive isotopes injected into the body
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Fe(s) + 2HCI(aq)→→→FeCl₂(s) + H₂(g)
AH° = -7.4 kJ and AS° = 107.9 J/K
D2L
D2L
D2L
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The Weather Channel Yelp TripAdvisor
b
D2L M G C
The maximum amount of work that could be done when 2.08 moles of Fe(s) react at 286 K, 1 atm is
Assume that AH° and ASº are independent of temperature.
Retry Entire Group 4 more group attempts remaining
kj.
+88
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Suspect #1: George Norman
Suspect #2: Becky Baker
George Norman recently
Becky Baker is a world famous
chef. She had just finished
baking a cake at the time of
the crime. The recipe called
for baking soda. The formula
for baking soda
(sodium
bicarbonate) is
had an accident
where he cut
himself with a
Alaia
knife. He cleaned
the wound with
rubbing alcohol.
The formula for
rubbing alcohol
Bak ing
Seda
NaHCOз.
(isopropanol) is C3H80.
Suspect # 3: Liz Lemon
Suspect #4: Ben Linus
Liz Lemon just had her nails
Ben Linus had been walking
done, and she still has
traces of nail polish remover
on her hands. Nail
around in the rain
for about an hour
before the crime
polish remover
he was suspected
contains acetone.
Acetone
of occurred. He
The formula for
Polish
was dripping wet with water
acetone is C3H60.
renover
at the time. The formula for
water is H2o.
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the questions.
Acid
Ka
HF
6.7 x 10 4
НС-Н3О2
1.8 x 10-5
[H+][A-]
a. Using the expression Ka=
explain how to determine which solution has the lower pH, 0.10 M HF(aq)
[HA]
or 0.10 MHC,H3O2(aq). Do not perform any numerical calculations.
b. Which solution has a higher percent ionization of the acid, a 0.10 M solution of HC,H;O2(ag) or a 0.010 M
solution of HC,H;O2(aq)? Justify your answer including the calculation of percent ionization for each solution.
14T
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12+
11+
10+
9+
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6-
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Part B
What is the name of the compound shown here?
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Question 1
Calculate the mass of dinitrogen tetroxide (N,O,) that contains a trillion (1.000 × 10²) oxygen atoms.
Be sure your answer has a unit symbol if necessary, and round it to 4 significant digits.
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The amino acid glycine has the molecular formula C,H5NO2, and the amino acid isoleucine has the molecular formula CH13NO2. Determine how many
moles of isoleucine contain the same number of atoms as 1.97 mol of glycine.
moles
• Submit Answer
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Identifying precipitation, combustion and acid-base reactions
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type of reaction
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reaction
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O combustion
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O double replacement
O acid-base
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O decomposition
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Feso, (aq) + PbCL, (aq) →
FeCl, (aq) + PbSO,(s)
O acid-base
O combination
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double replacement
O acid-base
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Baco, (s)
Ba0(s) + Co, (g)
O single replacement
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Taking logarithms and antilogarithms is necessary to solve many chemistry problems. For practice, complete the following table, where N is a number.
log N
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1.778
-0.054
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As you work on the questions, have your lab manual and text book handy.
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Only answer Post lab questions 2-5
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A Review for Quiz IV.docx: CHE X
A Review for Exam IlI.docx: CHE X
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15.48 1denthify funçional groups
HO
CH2OH
C=0
HgC
chem prob 15.48.pdf
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1. Define a protein, and describe one important function of proteins in the human body.
2. The following data were obtained from a Bradford assay to determine the protein content in a
sample:
Protein content (ug)
Absorbance value
0
0.000
2
0.022
5
0.065
10
0.106
20
0.178
30
0.299
40
0.380
50
0.472
unknown
0.150
Use Excel, another program, or graph paper to produce a calibration curve based on the data.
Use linear regression (or best fit line) to obtain the slope of the line.
Determine the unknown protein content for a sample that shows an absorbance reading of
b.
С.
0.150.
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