CHEM 103 Module 2 Exam Portage Learning Questions and Verified Answers,100% Guaranteed Pass

CHEM 103 Module 2 Exam Portage Learning
Questions and Verified Answers,100% Guaranteed Pass


CHEM 103
MODULE:2 2025/2026



CHEM 103 M2: Exam Questions and Correct Answers

Attempt History
Attempt Time Score

LATEST Attempt 1 112 minutes 100 out of 100




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1/18

,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_

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. C7H5NOBr


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




2/18

, Total Molecular Weight for Al2(SO4)3 = 342.17



2. C7H5NOBr

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




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