Chapter 8 - Acids, Bases, and pH

Amphoteric

________: a substance that can act as a proton donor in one reaction and a base in another.

OH−

A base is a substance that dissociates in water to form ________.

PH

exponential of hydrogen /hydronium ions, in moles per litre.

Acid

________ is a substance a proton can be removed (proton- donors)

Indicators

________ can be used to find endpoints close to the equivalence point.

Oxoacids

________: number of oxygen atoms by two or more.

Monoprotic acids

________: single hydrogen atoms that dissociate in water.

Polyprotic acids

________: more than one hydrogen atom that dissociates.

POH

________: power of hydroxide ions of a solution from the [OH−]

Buffer solution

________: a solution that contains a weak acid /conjugate base mixture or a weak base /conjugate acid mixture made by: Using weak acid and its salting weak base and its salt Characteristics: Unchanging pHBuffer capacity: the amount of acid or base that can be added before the considerable change occurs to the pH Chapter 8.4: Acid- Base Titration Curves.

Hydrohalic acids

________: (HCl, HBr,) have hydrogen- bonded to atoms.

Acid dissociation constant

________, Ka: acid ionization constant, measures the strength of the acid.

Equivalence point

________: point in a titration when the acid and base that are present completely react with each other.