Wednesday, November 19, 2008
Wednes-Day 1
AP Chem- we discussed thermochemical equations and did stoichiometric examples involving the heat/energy absorbed or released from various quantities of reactants or products.
DO NOT FORGET that the delta H value given for a reaction is PER MOLE of "reaction"; that is, for the reaction 2A + B --> 3C + D ; delta H = -255 kJ , one MOLE of reaction means that TWO moles of "A" reacted, ONE mole of "B" reacted, THREE moles of "C" formed, and ONE mole of "D" formed AND that 255 kJ of energy were released to the surroundings.
We discussed certain calorimetry terms "heat capacity", "specific heat (capacity), and "molar heat capacity"; these DEFINED measurements enable us to QUANTITATIVELY determine the energy gained or lost in a process or reaction. We also learned the qualitative meaning of each of these terms.
We demonstrated the very endothermic gas forming reaction of barium hydroxide and ammonium chloride, which forms water, ammonia gas, and aqueous barium chloride. We then started a descriptive chem set similar to what you will see on question 4 in part II of the AP exam.
Bio 6/7- we finished our Protein Synthesis Lab discussion and then launched our new unit on Photosynthesis and (Cellular) Respiration.
We discussed the big picture relationship between the two processes and where these processes occur. We then revisited the two types of nutrition to see that only AUTOtrophs can make glucose from inorganic CO2 and H2O via photosynthesis. Heterotrophs must eat/consume other organisms to get glucose and other nutrients.
We then defined photosynthesis and wrote out the NET word and the NET chemical equation for that process. There are actually many, many reactions involved in converting CO2 and H2O into glucose and oxygen but we will mainly focus on the starting reactants and theend products.
Bio 8- We discussed the big picture relationship between the two processes and where these processes occur. We then revisited the two types of nutrition to see that only AUTOtrophs can make glucose from inorganic CO2 and H2O via photosynthesis. Heterotrophs must eat/consume other organisms to get glucose and other nutrients.
We then defined photosynthesis and wrote out the NET word and the NET chemical equation for that process. There are actually many, many reactions involved in converting CO2 and H2O into glucose and oxygen but we will mainly focus on the starting reactants and the end products.
DO NOT FORGET that the delta H value given for a reaction is PER MOLE of "reaction"; that is, for the reaction 2A + B --> 3C + D ; delta H = -255 kJ , one MOLE of reaction means that TWO moles of "A" reacted, ONE mole of "B" reacted, THREE moles of "C" formed, and ONE mole of "D" formed AND that 255 kJ of energy were released to the surroundings.
We discussed certain calorimetry terms "heat capacity", "specific heat (capacity), and "molar heat capacity"; these DEFINED measurements enable us to QUANTITATIVELY determine the energy gained or lost in a process or reaction. We also learned the qualitative meaning of each of these terms.
We demonstrated the very endothermic gas forming reaction of barium hydroxide and ammonium chloride, which forms water, ammonia gas, and aqueous barium chloride. We then started a descriptive chem set similar to what you will see on question 4 in part II of the AP exam.
Bio 6/7- we finished our Protein Synthesis Lab discussion and then launched our new unit on Photosynthesis and (Cellular) Respiration.
We discussed the big picture relationship between the two processes and where these processes occur. We then revisited the two types of nutrition to see that only AUTOtrophs can make glucose from inorganic CO2 and H2O via photosynthesis. Heterotrophs must eat/consume other organisms to get glucose and other nutrients.
We then defined photosynthesis and wrote out the NET word and the NET chemical equation for that process. There are actually many, many reactions involved in converting CO2 and H2O into glucose and oxygen but we will mainly focus on the starting reactants and theend products.
Bio 8- We discussed the big picture relationship between the two processes and where these processes occur. We then revisited the two types of nutrition to see that only AUTOtrophs can make glucose from inorganic CO2 and H2O via photosynthesis. Heterotrophs must eat/consume other organisms to get glucose and other nutrients.
We then defined photosynthesis and wrote out the NET word and the NET chemical equation for that process. There are actually many, many reactions involved in converting CO2 and H2O into glucose and oxygen but we will mainly focus on the starting reactants and the end products.
# posted by C @ 12:29 PM 
