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Regents Core Curriculum
- Behavior of many acids and bases can be explained by the Arrhenius theory. Arrhenius acids and bases are electrolytes. (3.1uu)
- An electrolyte is a substance which, when dissolved in water, forms a solution capable of conducting an electric current. The ability of a solution to conduct an electric current depends on the concentration of ions. (3.1rr)
- Arrhenius acids yield H+ (aq), hydrogen ion as the only positive ion in an aqueous solution. The hydrogen ion may also be written as H3O+ (aq), hydronium ion. (3.1vv)
- Arrhenius bases yield OH- (aq), hydroxide ion as the only negative ion in an aqueous solution. (3.1ww)
- In the process of neutralization, an Arrhenius acid and an Arrhenius base react to form a salt and water. (3.1xx)
- Titration is a laboratory process in which a volume of solution of known concentration is used to determine the concentration of another solution. (3.1zz)
- There are alternate acid-base theories. One theory states that an acid is an H+ donor and a base is an H+ acceptor. (3.1yy)
The acidity or alkalinity of a solution can be measured by its pH value. The relative level of acidity or alkalinity of a solution can be shown by using indicators. (3.1ss) - On the pH scale, each decrease of one unit of pH represents a tenfold increase in hydronium ion concentration. (3.1tt)