Wednesday, November 09, 2005
Thursday: Honors and AP Test Day
Last day advice for tomorrow's tests...
Honors: multiple choice format...make sure that you know how to add, subtract, multiply and divide measurements (numbers WITH units!) to the correct number of significant figures...I noticed several errors on many labs regarding this. Just know and follow the rules for this skill or you will get those (many) questions wrong.
bottom line: know the lab test objectives that were posted a few days ago. Use the test-taking skills that I recommended for the last exam (keywords circled/underlined, all work written/drawn out and THEN look for a matching answer).
AP: Combined Thermo and Quantum Exam...
Know the BIG difference between enthalpy of FORMATION of a compound and the enthalpy of ANYTHING ELSE. These two quantities refer to COMPLETELY different chemical reactions. This difference was demonstrated in countless examples among the hw, practice tests and notes. Take heed of EACH term/definition. You CANNOT use different terms interchangeably in science, especially in Thermo.
Know how to do calorimetry problems and, if specific heat of water or a solution AND the heat capacity of the calorimeter are listed SEPARATELY, then you must use BOTH terms simultaneously in your energy EQUATION.
Also, change in internal energy is NOT equal to the change in enthalpy under most conditions (especially if any work is done by or on the system).
The Quantum stuff will cover mostly the Bohr Model and evidence/conclusions/explanations leading to the development of said model. Also, the quantum energy calculations i.e. bond dissociation energies based on photon energy data, Bohr energy level calculations...
I hope that you end the first quarter on a high note!
Monday afternoon: optional bonus comprehensive quarterly multiple choice exam for Honors. Location to be announce on Monday (probably will be in the auditorium).
Honors: multiple choice format...make sure that you know how to add, subtract, multiply and divide measurements (numbers WITH units!) to the correct number of significant figures...I noticed several errors on many labs regarding this. Just know and follow the rules for this skill or you will get those (many) questions wrong.
bottom line: know the lab test objectives that were posted a few days ago. Use the test-taking skills that I recommended for the last exam (keywords circled/underlined, all work written/drawn out and THEN look for a matching answer).
AP: Combined Thermo and Quantum Exam...
Know the BIG difference between enthalpy of FORMATION of a compound and the enthalpy of ANYTHING ELSE. These two quantities refer to COMPLETELY different chemical reactions. This difference was demonstrated in countless examples among the hw, practice tests and notes. Take heed of EACH term/definition. You CANNOT use different terms interchangeably in science, especially in Thermo.
Know how to do calorimetry problems and, if specific heat of water or a solution AND the heat capacity of the calorimeter are listed SEPARATELY, then you must use BOTH terms simultaneously in your energy EQUATION.
Also, change in internal energy is NOT equal to the change in enthalpy under most conditions (especially if any work is done by or on the system).
The Quantum stuff will cover mostly the Bohr Model and evidence/conclusions/explanations leading to the development of said model. Also, the quantum energy calculations i.e. bond dissociation energies based on photon energy data, Bohr energy level calculations...
I hope that you end the first quarter on a high note!
Monday afternoon: optional bonus comprehensive quarterly multiple choice exam for Honors. Location to be announce on Monday (probably will be in the auditorium).
# posted by C @ 1:25 PM 
