Chemical Synthesis & Techniques for the Physical Separation of Mixtures

"Chemically Synthesizing" and " Physically Separating" is what we do as chemists.

• Chemistry is both chemical and physical.
• As chemists our focal points are: chemically synthesizing and physically separating.
• Better living through chemistry & free economic markets" is our motivation and momentum.
• Finding a need and filling it, while solving complex problems, is what we do.
• If we did not have these needs (i.e., clean water to drink and clean air to breathe) our focus would be just on becoming farmers (hunters and gathers) on pathways for our own survival.
• So, to satisfy these and similar needs in a developing society, there will always be a need for chemists.

Maybe as a Citizens of Science you are having similar thoughts.

• For example, do we not enjoy having clean water flow from our tap and clean air outside in nature to breathe?
• Do we not enjoy our freedoms; freedom from want and freedom from fear?
• As we learn more in our course, perhaps a greater appreciation for the importance of chemistry in our daily lives will come into light.

As Citizens of Science in completing this course activity, will be experiencing a chemical synthesis and learning about physical separation techniques used to isolate a targeted substance, and to demonstrate the concept of better living through chemistry.

• Today, we are chemically synthesizing SOLID yellow silver (I) iodide, AgI, precipitate then physically separating and isolating it from an aqueous (H₂O) mixture of stuff.
  • We need the AgI to seed clouds, and
  • KNO₃ for fireworks.

This prelab is intended in guiding you through the chemical synthesis and physical separation process in helping you:

1. to observe important safeties during our experiment so we work safely,
2. to write out the main chemical synthetic reaction (the submarine reaction) in today's synthesis,
3. to practice 'comprehension through picturing' by drawing the physical separation process by flowcharting,
4. to consider our sandy salty egos here in San Diego which foster economic development, and
5. to re-learn special aspects of the hydrologic cycle (a lifelong physical separation process)
6. COMPLETE the worksheet contained within in this prelab and turn it in when we turn in this course activity.

Your are responsible for all laboratory textbook and content—tutorials, videos, powerpoints, PDFs & drill and practices—presented in these linked resources associated with these directions. Please click the 'Next' button to continue the learning process. Click "Next" in "adopting elemental steps for incremental success," That's Incredimental!!