General Chemistry Exam Review

Vocabulary-style flashcards based on general chemistry sample questions covering topics from electron configuration to stoichiometry.

General Chemistry Exam Topic Areas

The exam covers nine areas: Compounds and Elements, States of Matter, Reactions, Stoichiometry, Structure of Matter, Periodic Properties, Solutions, Dynamics, and Mathematics.

Valence Electrons of $1s^2 2s^2 2p^3$

$$5$$

d sublevel

The atomic sublevel that contains a total of five orbitals.

Charles’ Law (Balloon Example)

Explains why a balloon shrinks when a child takes it outside to play in the snow.

Potassium Oxide Bonding

Ionic bonding.

Non-existent Sublevel

$$3f$$

$PH_3$ Molecular Shape

Trigonal pyramidal.

Percent by Mass Concentration (Example)

A solution containing $50.0\,g$ of sodium bromide in $200.0\,g$ of water has a concentration of $20.0\, \%$.

Copper (II) Sulfate Pentahydrate Formula

$$CuSO_4 \cdot 5 H_2O$$

Nitride Ion Electron Configuration

$$1s^2 2s^2 2p^6$$

Immiscible Pair Example

Water and octane, $C_8H_{18}$.

Molar Mass Calculation (STP)

If $5.60\,L$ of a gas at STP has a mass of $13.0\,g$, the molar mass is $52.0\,g/mol$.

Sodium Carbonate Moles ($20.0\,g$)

$$0.189\,mol$$

Percent of Nitrogen in Magnesium Nitride

$$27.8\, \%$$

Combination Reaction Example

Aluminum reacting with bromine to produce aluminum bromide.

Aluminum Bromide Coefficient

The simplest whole number coefficient for aluminum bromide in the reaction between aluminum and bromine is $2$.

Percent Yield (Example)

If $14.0\,g$ of $C_2H_4$ is burned and the actual yield of water is $7.84\,g$, the percent yield is $43.6\, \%$.

Acetone ($C_3H_6O$) Molecules in $5.8\,g$

$6.0 \times 10^{22}$ molecules.