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Hydrogen Ions and Acidity
Terms in this set (18)
a term describing the reaction in which two water molecules react to produce ions
an aqueous solution in which the concentrations of hydrogen and hydroxide ions are equal; it has pH of 7.0
What indicates that the self-ionization equation is an equilibrium reaction?
The double arrow
equilibrium constant expression
a ratio of the concentrations of products to the concentration of reactants of a reaction
What is the product of K_eq and the concentration of water?
The ion product constant for water, K_w
How is the unknown concentration solved?
By substituting the given concentration into the equation and solving.
10^(-x)/10^(-y) = 10^[-x(-y)] = 10 ^(-x+y)
What is the product of the hydrogen-ion concentration and the hydroxide-ion concentration?
1.0 * 10^(-14)
ion-product constant for water (K_w)
the product of the concentrations of hydrogen ions and hydroxide ions in water; 1 * 10^(-14) at 25C
any solution in which the hydrogen-ion concentration is greater than the hydroxide-ion concentration; the H+ of an scidic solution is greater 1 * 10^(-7)M
any solution in which the hydroxide-ion concentration is greater than the hydrogen-ion concentration; the H+ of a basic solution is less than 1 * 10^(-7)
a number used to denote the hydrogen-ion concentration, or acidity, of a solution; it is the negative logarithm of the hydrogen-ion concentration of a solution
What is the pH equation?
When is a solution acidic? Basic?
When the [H+] is greater than 1
10^(-7)M and has a pH of less than 7, it is acidic. When the [H+] is lower than 1
10^(-7) and has a pH of greater than 7, it is basic.
How do you calculate the pOH of a solution?
pOH = -log[OH]
When is a solution basic and acidic in pOH?
Less than 7, basic. Greater than 7, acidic.
How do you find the pOH when the pH is known?
pH + pOH = 14
How do you fine the precise [H+] of a solution?
the 10^x button.
What is an indicator?
An indicator is a valuable tool for measuring pH because its acid from and base form have different colors in solution
This set is often in folders with...
Calculations Involving Colligative Properties
Chemistry Chapters 13, 14, and 15
Strengths of Acids and Bases
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