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30 Ιαν 2023 · There are three major classifications of substances known as acids or bases. The Arrhenius definition states that an acid produces H + in solution and a base produces OH-. This theory was developed by Svante Arrhenius in 1883. Later, two more sophisticated and general theories were proposed.
The earliest definition of acids and bases is Arrhenius's definition which states that: An acid is a substance that forms hydrogen ions H + when dissolved in water, and A base is a substance that forms hydroxide ions OH - when dissolved in water.
PH, quantitative measure of the acidity or basicity of aqueous or other liquid solutions. The term, widely used in chemistry, biology, and agronomy, translates the values of the concentration of the hydrogen ion into numbers between 0 and 14.
Reacts with bases to form a salt and water. Acidic solutions have a pH pH less than 7, with lower pH pH values corresponding to increasing acidity. Common examples of acids include acetic acid (in vinegar), sulfuric acid (used in car batteries), and tartaric acid (used in baking).
An acidic solution is a solution that has a pH value less than 7, indicating an excess of hydrogen ions (H extsuperscript {+}) compared to hydroxide ions (OH extsuperscript {-}). This excess of hydrogen ions makes the solution capable of donating protons to other substances, which is a key feature in acid-base chemistry.
Unit 8: Acids, bases, and solutions. Our mission is to provide a free, world-class education to anyone, anywhere. Khan Academy is a 501 (c) (3) nonprofit organization. Donate or volunteer today!
