Chemistry

Gas laws and other core relationships in general chemistry.

Gas Laws

PV = nRT

Ideal Gas Law

Relates the pressure, volume, amount, and temperature of an ideal gas.

Learn more →

Gas Laws

P₁V₁ = P₂V₂

Boyle's Law

At constant temperature, a gas's pressure and volume are inversely proportional.

Learn more →

Gas Laws

V₁/T₁ = V₂/T₂

Charles's Law

At constant pressure, a gas's volume is directly proportional to its absolute temperature.

Learn more →

Solutions

M = n / V

Molarity

The number of moles of solute dissolved per liter of solution — the most common way to express concentration.

Learn more →

Solutions

% = (mₑ / M) × 100

Percent Composition

The percentage by mass each element contributes to a compound.

Learn more →

Thermochemistry

Q = mcΔT

Heat Formula

Calculates the heat energy absorbed or released when a substance changes temperature.

Learn more →

Acids & Bases

pH = -log[H⁺]

pH Formula

Measures how acidic or basic a solution is, based on its hydrogen ion concentration.

Learn more →

🧪 Chemistry

Gas Laws

Ideal Gas Law

Boyle's Law

Charles's Law

Solutions

Molarity

Percent Composition

Thermochemistry

Heat Formula

Acids & Bases

pH Formula

Chemistry