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Ability of a substance to exhibit amphiprotism by accepting donated protons.

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Dumas Method

A method used to determine the molecular weights of volatile liquids.

Composition Stoichiometry

Descibes the quantitative (mass) relationships among elements in compounds.

Single Bond

Covalent bond resulting from the sharing of two electrons (one pair) between two atoms.

Homogeneous Equilibria

Equilibria involving only one species in a single phase. For example, all gases, all liquids or all solids.

Net Ionic Equation

Equation that results from canceling spectator ions and eliminating brackets from a total ionic equation.

Mole Fraction

The number of moles of a component of a mixture divided by the total number of moles in the mixture.


Mass Action Expression

For a reversible reaction, aA + bB cC + dD the product of the concentrations of the products (species on the right), each raised to the power that corresponds to its coefficient in the balanced chemical equation, divided by the product of the concentrations of reactants (species on the left), each raised to the power that corresponds to its coefficient in the balanced chemical equation. At equilibrium the mass action expression is equal to K, at other times it is Q.[C]c[D]d [A]a[B]b = Q, or at equilibrium K.

Quantum Mechanics

Mathematical method of treating particles on the basis of quantum theory, which assumes that energy (of small particles) is not infinitely divisible.

Law of Conservation of Matter and Energy

The total amount of matter and energy available in the universe is fixed.

Faraday's Law of Electrolysis

One equivalent weight of a substance is produced at each electrode during the passage of 96,487 coulombs of charge through an electrolytic cell.