CHEM 150 Practice Exams

Midterm I · 30 Questions · 90 Minutes · Units 17

Provided Data Sheet

Constants and formulas allowed in the exam

Constants

N = 6.022 × 10²³ mol¹    1 u = 1.660 × 10² kg
R = 8.314 L·kPa/(mol·K) = 0.08206 L·atm/(mol·K)
1 atm = 101.325 kPa = 760 mmHg = 760 torr
STP: 0°C, 1 atm    molar volume = 22.4 L/mol

Key Formulas

PV = nRT     PV/T = PV/T     P_total = Σ Pᵢ     Pᵢ = xᵢ × P_total
[P + n²a/V²][V nb] = nRT     (van der Waals)
P_A = x_A × P°_A (Raoult)     S_g = k × P_g (Henry)
π = MRT     FC = VE ½(BE) LP
% yield = (actual/theoretical) × 100%     MᵢVᵢ = MᶠVᶠ

Bond Dissociation Energies (kJ/mol)

HH 436   CH 414   CC 347   C=C 611   CC 837
CO 360   C=O 799   NN 946   O=O 498   HO 464   HN 391

Electronegativity Values (Pauling)

H:2.1   C:2.5   N:3.0   O:3.5   F:4.0
P:2.1   S:2.5   Cl:3.0   Br:2.8   I:2.5
Na:0.9   Mg:1.2   Al:1.5   Si:1.8   Ca:1.0   K:0.8

Practice Exam A

30 questions · 90 min

CHEM 150 Midterm I Practice A

Units 17 · 30 marks · Scientific calculator permitted

90:00

Exam A Results

Correct
Incorrect
Time Used

Practice Exam B

30 questions · 90 min · different question set, same topics

CHEM 150 Midterm I Practice B

Units 17 · 30 marks · Scientific calculator permitted

90:00

Exam B Results

Correct
Incorrect
Time Used

Practice Exam C

30 questions · 90 min · questions drawn from real past midterms

CHEM 150 Midterm I Practice C

Units 1–7 · 30 marks · Scientific calculator permitted

90:00

Exam C Results

Correct
Incorrect
Time Used