CHMA11H3 Midterm: CHMA11H3 Midterm Practice Questions
CHMA11H3Y Introductory Chemistry II
Practice Test
Time Allowed: 90 Min
No cell phones or electronic devices are allowed on the students or at their desks during
the test/exam. A cell phone is considered as an unauthorized aid since it can store text
information and images and is therefore covered under the "Examination Room
Regulations" of the current year’s version of the UTSC Course Calendar.
Only non-programmable, non-communicating calculators are allowed in tests and exams for this course.
Invigilators have the authority to check calculators during the tests and exams. Students who have illegal
calculators confiscated during a test/exam will be supplied with an allowed calculator but an immediate
penalty of 10% will be imposed for that test/exam. Students without a calculator will also be allowed to
borrow an allowed model, but at the cost 10% for that test/exam.
1. Consider the molecule below. Determine the molecular geometry at each of the 2 labeled
carbons.
A) C1 = tetrahedral, C2 = linear
B) C1 = trigonal planar, C2= bent
C) C1 = bent, C2 = trigonal planar
D) C1 = trigonal planar, C2 = tetrahedral
E) C1 = trigonal pyramidal, C2 = see-saw
2. Place the following in order of increasing dipole moment.
I. BCl3 II. BIF2 III. BClF2
A) I < II = III
B) II < III < I
C) I < II < III
D) II < I < III
E) I < III < II
3. Place the following compounds in order of decreasing strength of intermolecular forces.
HF O2 CO2
A) HF > CO2 > O2
B) HF > O2 > CO2
C) O2 > CO2 > HF
D) CO2 > HF > O2
E) CO2 > O2 > HF
4. Place the following substances in order of increasing boiling point.
CH3CH2OH Ar CH3OCH3
A) Ar < CH3OCH3 < CH3CH2OH
B) CH3CH2OH < Ar < CH3OCH3
C) CH3CH2OH < CH3OCH3 < Ar
D) CH3OCH3 < Ar < CH3CH2OH
E) Ar < CH3CH2OH < CH3OCH3
5. The enthalpy change for converting 1.00 mol of ice at -50.0°C to water at 70.0°C is
__________ kJ. The specific heats of ice, water, and steam are 2.09 J/gK, 4.18 J/gK, and
1.84 J/gK, respectively. For H2O, ΔHfus = 6.01 kJ/mol, and ΔHvap = 40.67 kJ/mol.
A) 12.28
B) 6.41
C) 13.16
D) 7154
E) 9.40
6) Assign the appropriate labels to the phase diagram shown below.
A) A = liquid, B = solid, C = gas, D = critical point
B) A = gas, B = solid, C = liquid, D = triple point
C) A = gas, B = liquid, C = solid, D = critical point
D) A = solid, B = gas, C = liquid, D = supercritical fluid
E) A = liquid, B = gas, C = solid, D = triple point
7) Gold crystallizes in a face-centered cubic structure. What is the edge length of the unit cell if
the atomic radius of gold is 144 pm?
A) 204 pm
B) 288 pm
C) 333 pm
D) 407 pm
8. Choose the situation below that would result in an endothermic ΔHsolution.
A) When |ΔHsolute| > |ΔHhydration|
B) When |ΔHsolute| < |ΔHhydration|
C) When |ΔHsolute| is close to |ΔHhydration|
D) When |ΔHsolvent| >> |ΔHsolute|
E) There isn't enough information to determine.
36
CHMA11H3 Full Course Notes
Verified Note
36 documents
Document Summary
Only non-programmable, non-communicating calculators are allowed in tests and exams for this course. Invigilators have the authority to check calculators during the tests and exams. Students who have illegal calculators confiscated during a test/exam will be supplied with an allowed calculator but an immediate penalty of 10% will be imposed for that test/exam. Students without a calculator will also be allowed to borrow an allowed model, but at the cost 10% for that test/exam. No cell phones or electronic devices are allowed on the students or at their desks during the test/exam. A cell phone is considered as an unauthorized aid since it can store text information and images and is therefore covered under the "examination room. Regulations" of the current year"s version of the utsc course calendar: consider the molecule below. Determine the molecular geometry at each of the 2 labeled carbons: bcl3.
