What is PH and why does it matter?The term pH refers to the acidity or alkalinity of a solution. Substance that release hydrogen ions when dissolved in water are acids. The more hydrogen ions they release the more acidic they are. Substances that release hydroxide ions when dissolved in water are bases. Alkalinity increases with the concentration of hydroxyl ions. Each pH unit represents a 10-fold change in concentration. Our ExperimentWe will compare the pH of the following: Vinegar Ammonia Solution Lemon Juice Baking Soda Solution Alka-Seltzer Solution Record your results in your worksheet Why does pH matter? In general, fish reproduction is affected at pH levels below 5.0 Fish begin to die when pH falls below 4.0 A pH change of 1 means a ten fold change in the ions. pH 9 is ten times more basic than pH 8 pH stands for potential of hydrogen, a measurement of the acidity r alkalinity of a solution 7 is neutral 1 to 6 are acids 8 to 14 are bases AcidsAcids are substance that break apart in water to form a hydrogen ion.
Everyday Acids
Acids react with carbonates to give off carbon dioxide BasesBases are substance that break down in water and form hydroxide ions (OH-). The greater the concentration of OH- ions the stronger the base is. Have a pH from 8 to 14 pH 9 is ten times more basic than pH 8 Bases
Everyday examples:
More on Acids and BasesSome plants tell us the pH of their soil by expressing different colors of flowers.
Venom is AcidicA sting from a bee may be painful for many reasons, pH of bee venom is 5.0-5.5 Formic acid in ants has a pH of 2 to 3 Ph can be different in various parts on an environment
0 Comments
Leave a Reply. |
Details
Author: Jazmin GannonA place to grow Archives
February 2021
Categories |