Chemistry Concepts on pH and Acid-Base Equilibrium
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Flashcards covering essential chemistry vocabulary related to pH, hydronium ions, acid-base concepts, and logarithmic calculations.
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16 Terms
[H+]
Hydronium ion concentration, measured in moles per liter, representing the number of hydrogen ions present in a solution.
pH
A scale used to specify the acidity or basicity of an aqueous solution, determined by the negative logarithm of the hydronium ion concentration.
pOH
A measure of the hydroxide ion concentration in a solution, calculated by the negative logarithm of the hydroxide ion concentration.
Kw
The ion product of water at 25°C, equal to 1.0 × 10^-14, representing the product of the concentrations of H+ and OH-.
Logarithm
The exponent by which a base must be raised to produce a given number, often used in pH and pOH calculations.
Acid-Base Equilibrium
The state when the concentrations of H+ and OH- in a solution remain constant, characteristic of neutral, acidic, or basic solutions.
H-acid
Refers to an acid in its dissociated form, indicating the presence of hydrogen ions.
Base
A substance that can accept protons (H+) or donate electron pairs, contributing to the increase of pH in a solution.
[H+]
Hydronium ion concentration, measured in moles per liter, representing the number of hydrogen ions present in a solution.
pH
A scale used to specify the acidity or basicity of an aqueous solution, determined by the negative logarithm of the hydronium ion concentration: pH = -\log[H+].
pOH
A measure of the hydroxide ion concentration in a solution, calculated by the negative logarithm of the hydroxide ion concentration: pOH = -\log[OH^-].
Kw
The ion product of water at 25°C, equal to 1.0 × 10^-14, representing the product of the concentrations of H+ and OH-: K_w = [H^+][OH^-] = 1.0 \times 10^{-14}.
Logarithm
The exponent by which a base must be raised to produce a given number, often used in pH and pOH calculations.
Acid-Base Equilibrium
The state when the concentrations of H+ and OH- in a solution remain constant, characteristic of neutral, acidic, or basic solutions.
H-acid
Refers to an acid in its dissociated form, indicating the presence of hydrogen ions.
Base
A substance that can accept protons (H+) or donate electron pairs, contributing to the increase of pH in a solution.