1|Page
CHEM 103 MODULE 2 EXAM PORTAGE LEARNING LATEST AND
COMPLETE VERSION 2025-2026 GRADED A+
M2: Exam - Requires Respondus LockDown Browser
+ Webcam
Due No due date Points 100 Questions 10 Time Limit 120 Minutes Requires Respondus LockDown Browser
Instructions
Please read the following before beginning the exam:
You must show your work for calculations or give an explanation for short answer questions in order to receive credit.
You may only use the methods and explanations provided by this course for your answers. The use of a method or
explanation that was not taught in this course is a violation of the Academic Integrity Policy.
You MUST only use the Periodic Table provided within the exam.
You MUST only use the equation bank that is provided within the exam.
The use of printed versions of the Periodic Table and equation bank will be considered a violation of the Academic
Integrity Policy.
Any equation or constant used on an exam that is not from the equation bank and is different from the method taught in
this course will be considered an outside source and a violation of the Academic Integrity Policy.
During module exams you may not use any outside source of information such as the module, problem sets,
notes, Internet, tutor, etc.
You may ONLY copy and paste from within the exam itself, from the equation bank, or from the provided calculator
but not from an outside source.
The only items you should have in front of you are your computer, 1-2 pieces of blank scratch paper, a
calculator (non-cell phone), and a pen/pencil.
, M2: Exam - Requires Respondus LockDown Browser + Webcam: General Chemistry I w/Lab-2021- Kozminski
2|Page
Attempt History
Attempt Time Score
LATEST Attempt 1 112 minutes 100 out of 100
Score for this quiz: 100 out of 100 Submitted May 20 at 11am
This attempt took 112 minutes.
Question 1 pts
You may find the following resources helpful:
Scientific Calculator (https://www.desmos.com/scientific)
Periodic Table
(https://previous.nursingabc.com/upload/images/Help_file_picture/Periodic_T
Equation Table
(https://portagelearning.instructure.com/courses/948/files/271474/download?
download_frd=1)
Show the calculation of the molecular weight for the following
compounds, reporting your answer to 2 places after the decimal.
1. Al2(SO4)3
2. C7H 5NOBr
Your Answer:
1. Al2(SO4)3
Al = 2 x 26.98 = 53.96
S = 3 x 32.07 = 96.21
O = 12 x 16.00 = 192
, M2: Exam - Requires Respondus LockDown Browser + Webcam: General Chemistry I w/Lab-2021- Kozminski
3|Page
Total Molecular Weight for Al2(SO4)3 = 342.17
2. C7H 5NOBr
C = 7 x 12.01 = 84.07
H = 5 x 1.008 = 5.04
N = 1 x 14.01 = 14.01
O = 1 x 16.00 = 16.00
Br = 1 x 79.90 = 79.90
Total Molecule Weight for C7H5NOBr= 199.02
1. 2Al + 3S + 12O = 342.17
2. 7C + 5H + N + O + Br = 199.02
CHEM 103 MODULE 2 EXAM PORTAGE LEARNING LATEST AND
COMPLETE VERSION 2025-2026 GRADED A+
M2: Exam - Requires Respondus LockDown Browser
+ Webcam
Due No due date Points 100 Questions 10 Time Limit 120 Minutes Requires Respondus LockDown Browser
Instructions
Please read the following before beginning the exam:
You must show your work for calculations or give an explanation for short answer questions in order to receive credit.
You may only use the methods and explanations provided by this course for your answers. The use of a method or
explanation that was not taught in this course is a violation of the Academic Integrity Policy.
You MUST only use the Periodic Table provided within the exam.
You MUST only use the equation bank that is provided within the exam.
The use of printed versions of the Periodic Table and equation bank will be considered a violation of the Academic
Integrity Policy.
Any equation or constant used on an exam that is not from the equation bank and is different from the method taught in
this course will be considered an outside source and a violation of the Academic Integrity Policy.
During module exams you may not use any outside source of information such as the module, problem sets,
notes, Internet, tutor, etc.
You may ONLY copy and paste from within the exam itself, from the equation bank, or from the provided calculator
but not from an outside source.
The only items you should have in front of you are your computer, 1-2 pieces of blank scratch paper, a
calculator (non-cell phone), and a pen/pencil.
, M2: Exam - Requires Respondus LockDown Browser + Webcam: General Chemistry I w/Lab-2021- Kozminski
2|Page
Attempt History
Attempt Time Score
LATEST Attempt 1 112 minutes 100 out of 100
Score for this quiz: 100 out of 100 Submitted May 20 at 11am
This attempt took 112 minutes.
Question 1 pts
You may find the following resources helpful:
Scientific Calculator (https://www.desmos.com/scientific)
Periodic Table
(https://previous.nursingabc.com/upload/images/Help_file_picture/Periodic_T
Equation Table
(https://portagelearning.instructure.com/courses/948/files/271474/download?
download_frd=1)
Show the calculation of the molecular weight for the following
compounds, reporting your answer to 2 places after the decimal.
1. Al2(SO4)3
2. C7H 5NOBr
Your Answer:
1. Al2(SO4)3
Al = 2 x 26.98 = 53.96
S = 3 x 32.07 = 96.21
O = 12 x 16.00 = 192
, M2: Exam - Requires Respondus LockDown Browser + Webcam: General Chemistry I w/Lab-2021- Kozminski
3|Page
Total Molecular Weight for Al2(SO4)3 = 342.17
2. C7H 5NOBr
C = 7 x 12.01 = 84.07
H = 5 x 1.008 = 5.04
N = 1 x 14.01 = 14.01
O = 1 x 16.00 = 16.00
Br = 1 x 79.90 = 79.90
Total Molecule Weight for C7H5NOBr= 199.02
1. 2Al + 3S + 12O = 342.17
2. 7C + 5H + N + O + Br = 199.02
