Please enable JavaScript.
Coggle requires JavaScript to display documents.
Acids, Bases and pH, Anne Marie Helmenstine, P. (n.d.). Here's What an…
Acids, Bases and pH
The pH Scale
In chemistry, pH is a scale used to specify the acidity or basicity of an aqueous solution. The pH scale is logarithmic and inversely indicates the concentration of hydrogen ions in the solution.
-
pH is a measure of how acidic/basic water is. The range goes from 0 - 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base.
The concept of the pH table was first introduced by the Danish chemist Søren Peder Lauritz Sørensen at the Carlsberg Laboratory in 1909.
While running experiments with beer at a research lab in Copenhagen, Søren developed the simple yet enduring pH scale, which measures whether a substance is acidic or basic.
-
-
Acids are any substance that in a water solution, tastes sour, changes the color of indicators, reacts with some metals, reacts with bases to form salts and promotes some chemical reactions
-
-
Carbonic and phosphoric acids give carbonated beverages a sharp taste, citric and ascorbic acids give lemons and grapefruit their tartness, and acetic acid makes vinegar taste sour
-
-
-
-
A strong acid or strong base completely dissociates into its ions in water. If the compound does not completely dissociate, it's a weak acid or base. How corrosive an acid or a base is does not relate to its strength.
Bases produce hydroxyl, while acids produce hydrogen ion
-
-
-
-
Acids and bases react with each other in what is called a neutralization reaction. The reaction produces salt and water and leaves the solution closer to a neutral pH than before.
-
-
Examples of bases include Rubidium Hydroxide, and Zinc Hydroxide
One example of a base application would be mixing sodium hydroxide, lye, and draino to make soap.
-
