CHEM 1A03 Study Guide - Midterm Guide: Paramagnetism, Atomic Radius, Nernst Equation
16 Oct 2018
School
Department
Course
Professor
Name: ____________________ Student number: ______________
Chemistry 1A03
Test 1
Sep 29, 2017
McMaster University
VERSION 1
Instructors: L. Davis, D. Emslie,
S. Greenberg, A.P. Hitchcock
Duration: 90 minutes
This test contains 16 numbered pages printed on both sides. There are 20 multiple-choice
questions appearing on pages numbered 3 to 12. Pages 13 and 14 are extra space for rough
work. Page 15 includes some useful data and equations, and there is a periodic table on
page 16. You may tear off the last page to view the periodic table and the data provided.
You must enter your name and student number on this question sheet, as well as on
the answer sheet. Your invigilator will be checking your student card for identification.
You are responsible for ensuring that your copy of the question paper is complete.
Bring any discrepancy to the attention of your invigilator.
All questions are worth 1 mark - the total marks available are 20. There is no penalty
for incorrect answers.
BE SURE TO ENTER THE CORRECT VERSION OF YOUR TEST (shown near the top
of page 1), IN THE SPACE PROVIDED ON THE ANSWER SHEET.
ANSWER ALL QUESTIONS ON THE ANSWER SHEET, IN PENCIL.
Instructions for entering multiple-choice answers are given on page 2.
SELECT ONE AND ONLY ONE ANSWER FOR EACH QUESTION from the answers (A)
through (E). No work written on the question sheets will be marked. The question
sheets may be collected and reviewed in cases of suspected academic dishonesty.
Academic dishonesty may include, among other actions, communication of any kind
(verbal, visual, etc.) between students, sharing of materials between students, copying or
looking at other students’ work. If you have a problem please ask the invigilator to deal with
it for you. Do not make contact with other students directly. Try to keep your eyes on your
own paper – looking around the room may be interpreted as an attempt to copy.
Only Casio FX991-MS or FX991-MS+ electronic calculators may be used. They must NOT be
transferred between students. Use of any aids other than those provided, is not allowed.
Page 1 of 16 Version # 1 Continued on next page Copyright Sep 2017,
Department of Chemistry and Chemical Biology, McMaster University
Name: ____________________ Student number: ______________
OMR EXAMINATION – STUDENT INSTRUCTIONS
NOTE: IT IS YOUR RESPONSIBILITY TO ENSURE THAT THE ANSWER SHEET IS
PROPERLY COMPLETED: YOUT EXAMINATION RESULT DEPENDS UPON PROPER
ATTENTION TO THESE INSTRUCTIONS.
The scanner, which reads the sheets, senses the bubble shaded areas by their non-
reflection of light. A heavy mark must be made, completely filling the circular
bubble, with an HB pencil. Marks made with a pen will NOT be sensed. Erasures
must be thorough or the scanner will still sense a mark. Do NOT use correction fluid
on the sheets. Do NOT put any unnecessary marks or writing on the sheet.
1. On SIDE 1 (red side) of the form, in the top box, in pen, print your student
number, name, course name, and the date in the spaces provided. Then you
MUST write your signature, in the space marked SIGNATURE.
2. In the second box, with a pencil, mark your student number in the space
provided. If your student number does NOT begin with a 4, put “00” before your
student number. Then fill in the corresponding bubble numbers underneath.
3. Do NOT put in a leading zero when bubbling in your exam version number.
4. Answers: mark only ONE choice from the alternatives (A,B,C,D,E) provided for each
question. The question number is to the left of the bubbles. Make sure that the number
of the question on the scan sheet is the same as the number on the test paper.
5. Pay particular attention to the marking directions on the form.
6. Begin answering the question using the first set of bubbles, marked “1”.
Version number
Enter your
answer to
Question #1
here
Page 2 of 16 Version # 1 Continued on next page Copyright Sep 2017 Department
of Chemistry and Chemical Biology, McMaster University
Name: ____________________ Student number: ______________
1. What is the correct chemical formula for calcium nitrate?
A) CaNO3
B) Ca(NO3)2
C) Ca(NO2)2
D) Ca2NO2
E) Ca2NO3
2. A 1.05 kg piece of pure hematite (Fe2O3) is placed in a 150. L container. At 25.0
°C the container is evacuated to 1.05x10−5 bar, then filled with 5.05 bar of CO
and sealed. The container is heated to 1300 K and the reduction of the hematite
to metallic iron goes 100% to completion. The unbalanced reaction is
Fe2O3 (s) + CO (g) → Fe (s) + CO2 (g) (unbalanced)
After the vessel has cooled to 25.0 °C, what are (i) mass of Fe(s) in kg,
(ii) partial pressure of CO2 (g) in bar, and (iii) the total pressure in bar ?
m(Fe) (kg)
P(CO2) (bar)
P-total (bar)
A)
0.734
3.26
5.05
B)
0.721
1.09
2.88
C)
0.721
2.17
5.05
D)
0.852
3.26
4.95
E)
0.734
2.17
5.05
Page 3 of 16 Version # 1 Continued on next page Copyright Sep 2017 Department
of Chemistry and Chemical Biology, McMaster University
35
CHEM 1A03 Full Course Notes
Verified Note
35 documents
