Aquatic Chemistry

6. concentration of hydrogen ions in an aqueous solution
7. negatively charged ion made of one carbon and three oxygen atoms; important in buffering water
8. involves the transfer of electrons, releases energy, and can lead to oxygen depletion in lakes and wetlands
9. the name of the Adirondack Lake we will compare our pH and alkalinity water values with today
10. determining concentration by slowly adding a solution until a reaction endpoint is reached
13. lowest energy yield on a REDOX ladder producing “biogas”
14. the strong acid you will titrate with today
15. a sudden drop in a lake’s pH, often occurring during snow melt season, when accumulated acidic compounds from snow are rapidly released
16. rain precipitation usually made by sulfur and nitrogen pollution in the atmosphere
17. a basic substance has a high concentration of this
19. the ability of water to neutralize or buffer acid
20. loss of electrons; often oxygen-rich

1. carbon system (multiple carbon forms) that buffers pH in water
2. the graduated cylindrical glassware that will be used to dispense the acid into water for the lab
3. in lab, you must add an acid until the pH is below _______ to create your titration curve
4. N2 -> NH4+ (nitrogen fixation) is an example of a ___________ redox reaction
5. a change in pH can alter the solubility of __________ in soils and water
11. “always add _______ to water, never the reverse” (lab safety rule)
12. this legislation significantly helped improve air quality and reduce acid rainfall in the northeast USA
13. microscopic living organisms that drive nutrient cycling
18. the ion product constant of water