ChemistryWiki | Answers To 2015-2016 Review HW For Acid | RecentChanges | Preferences
Part I
1. Hydrosulfuric acid, weak
2. H2Se, weak
3. Sulfuric acid, strong
4. H2SO3, weak
5. Calcium hydroxide, strong
6. H3PO4, weak
7. NH3, weak (base)
8. Carbon dioxide, non-electrolyte
9. Barium chlorite, strong (ionic compound)
10. Nitrous acid, weak
Part II
1. All solution are same molarity so difference are strong and weak and how many H+ ionizes per molecule of acid. HF is weak acid so it has highest pH, and sulfuric acid has 2 H+ per molecule so it has lowest pH.
2. pH indicator indicates a pH (actually a pH range). The weak acid, that is the indicator, changes colors.
3. 2016-2017 students do not do
4. pH = -log [H+] , pH value and [H+] are indirectly proportional. It can be show in the math by the negative sign.
Part III
1. pH = 1.988
2. 3.58E-4M
3. pH = 10.73