Periodic Table and Basic Chemistry Concepts

This set of flashcards covers key concepts from the periodic table and fundamental chemistry principles discussed in the lecture notes.

Hydrogen

The first element on the periodic table, with symbol H and atomic number 1.

Molarity (M)

The concentration of a solution expressed as moles of solute per liter of solution.

pH

A measure of the acidity or basicity of a solution, calculated as the negative logarithm of the hydronium ion concentration.

Dissociation constant (K_a)

A measure of the strength of an acid in solution, defined as the equilibrium constant for the dissociation of an acid.

Kw

The ion product constant of water, equal to $1.0 imes 10^{-14}$ at 25°C.

pOH

A measure of the basicity of a solution, calculated as the negative logarithm of the hydroxide ion concentration.

pKa

The negative logarithm of the acid dissociation constant (K_a), used to measure the strength of an acid.

Equilibrium Constant (K)

A value that expresses the ratio of the concentrations of products to reactants at equilibrium for a reversible reaction.

Weak acid

An acid that only partially dissociates in solution, resulting in a lower concentration of hydronium ions.

Strong base

A base that completely dissociates in solution, resulting in a high concentration of hydroxide ions.