Follow-up Questions nverse The pH scale is described as having a a high value de
ID: 1080322 • Letter: F
Question
Follow-up Questions nverse The pH scale is described as having a a high value designates a substance with a hydrogen ions. A substance with a pH value of 2 is _1164 1. relationship because concentration of times more acidic than a substance with a value of 6 Ammonia is soluble in water because both substances contain covalent bonds. However, in contrast, most plastics will not be broken down in the afore- mentioned solution because they lack 2. 3. First, assume that an unnamed element has 11 electrons in its electron cloud. Second, assume that a different unnamed element has 10 neutrons and an atomic mass of 19. Explain how these elements might form a chemical bond. You must draw a before and after picture of each element. Be sure to label bond. arges in the event that these elements form an ionic t cont see thus a lot o lc aet one to 2Explanation / Answer
1) pH Scale has an inverse relationship with H+ concentration. pH is defined as the negative logarithm of the hydrogen ion concentration. The equation is: pH = - log [H+]
More H+ ions means lower pH, less H+ ions mean higher pH.
pH lower than 7.0 = High H+ concentration
pH higher than 7.0 = Low H+ concentration
pH = 2 means [H+] = 10-2M and pH = 6 means [H+] = 10-6M.
A substance wit pH value of 2 is 104 times more acidic than a substance with pH = 6
2) Ammonia is polar and water also polar. Both substances are polar in nature. Both substance contains polar covalent bonds.The solubility of ammonia is mainly due to the hydrogen bonding.Since water is also polar, ammonia can easily form hydrogen bonds with water molecules,allowing it to dissolve.This reaction results in a solution containing ammonium ions, hydroxide ions, ammonia molecules and water molecules.Ammonia has the ability to form hydrogen bonds.When the hydrogen bonds between water molecules are broken, they can be replaced by equivalent bonds between water and ammonia molecules. Some of the ammonia also reacts with the water to produce ammonium ions and hydroxide ions.