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Results for “Mole”

14 terms


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Filtering by: Mole Starts with D Clear all
Acids, Bases & Salts

Degree of Ionisation

The fraction of dissolved electrolyte molecules that have broken into ions at equilibrium.

α = ionised / total Dimensionless
Stoichiometry & Chemical Reactions

Dehydration Reaction

A reaction in which water is removed from a single molecule, generally producing an unsaturated or condensed product.

R–CH₂–CH₂OH → R–CH=CH₂ + H₂O Dimensionless
States of Matter & Gas Laws

Diffusion

The spontaneous spreading of one substance through another as a result of random molecular motion.

J = −D (dc/dx) m²/s
Chemical Bonding & Molecular Structure

Dipole Moment

The vector measure of the separation of positive and negative charge in a bond or molecule.

μ = q × d D
Chemical Bonding & Molecular Structure

Dipole–Dipole Interaction

The electrostatic attraction between the positive end of one polar molecule and the negative end of another.

E ∝ μ₁μ₂ / r³ kJ/mol
Acids, Bases & Salts

Diprotic Acid

An acid that can donate two protons per molecule.

H₂A ⇌ 2H⁺ + A²⁻ mol/L
Chemical Equilibrium

Dynamic Equilibrium

An equilibrium in which opposing processes continue at the molecular level but at equal and opposite rates.

rate_forward = rate_reverse Dimensionless
States of Matter & Gas Laws

Dalton's Law of Partial Pressures

The total pressure of a gas mixture equals the sum of the pressures each component would exert alone in the same volume.

p_total = p₁ + p₂ + p₃ … Pa
Organic Chemistry

Diastereomer

A stereoisomer that is not a mirror image of the compound with which it is compared.

Dimensionless
Solutions & Colligative Properties

Dilution

The process of reducing a solution's concentration by adding more solvent, leaving the amount of solute unchanged.

M₁V₁ = M₂V₂ mol/L
Biochemistry & Polymer Chemistry

Disaccharide

A carbohydrate formed when two monosaccharide units join through a glycosidic bond.

C₁₂H₂₂O₁₁ Dimensionless
Chemical Equilibrium

Distribution Law

The principle that a solute distributes itself between two immiscible solvents in a constant ratio at fixed temperature.

K_D = C_organic / C_aqueous Dimensionless
Biochemistry & Polymer Chemistry

Degree of Polymerisation

The number of monomer units in an average polymer chain.

DP = M_polymer / M_monomer Dimensionless
Foundations of Chemistry

Dimensional Analysis

A calculation method that tracks and cancels units through a chain of conversion factors to reach the required quantity.

given quantity × (desired unit / given unit) = answer Various