Thursday, October 23, 2008
Thurs-Day 2
AP Chem: we did a redox titration problem in which we:
1. wrote the formulas of the reactant and product particles (from their names)
2. used the half-reaction method in order to balance the equation
3. use the volumetric data AND the balanced equation to determine the number of moles of each reactant used up at the equivalence point.
4. converted moles to grams for the reactant of interest (H2O2)
5. calculated the mass percent (part/whole) x 100% of the H2O2 in the solution
We also identified the oxidizing AGENT (which, itself, got reduced) and the reducing AGENT (which, itself, got oxidized) in the reaction.
We started another solution stoichiometry problem, a double replacement between zinc sulfide and hydrochloric acid.
Bio 6 – we discussed the important overall results of mitosis/cytokinesis. We then discussed cancer, uncontrolled cell division, and how cancer cells harm an organism by using up most of its needed nutrients thus depriving normal cells of nutrients/sources of energy.
We began to discuss the composition and structure of DNA from which we will see how chromosomes can be identically replicated so that cells can be identically replicated (during mitosis and cytokinesis).
Tomorrow, I will briefly review the main errors from your cell test and address other questions that you may have.
Bio 7/8- we reviewed the phases of mitosis and related them to the photographs of the cells in these various phases of mitosis. We then discussed the important overall results of mitosis/cytokinesis. We discussed cancer, uncontrolled cell division, and how cancer cells harm an organism by using up most of its needed nutrients thus depriving normal cells of nutrients/sources of energy.
We began to discuss the composition and structure of DNA from which we will see how chromosomes can be identically replicated so that cells can be identically replicated (during mitosis and cytokinesis).
Tomorrow, I will briefly review the main errors from your cell test and address other questions that you may have.
1. wrote the formulas of the reactant and product particles (from their names)
2. used the half-reaction method in order to balance the equation
3. use the volumetric data AND the balanced equation to determine the number of moles of each reactant used up at the equivalence point.
4. converted moles to grams for the reactant of interest (H2O2)
5. calculated the mass percent (part/whole) x 100% of the H2O2 in the solution
We also identified the oxidizing AGENT (which, itself, got reduced) and the reducing AGENT (which, itself, got oxidized) in the reaction.
We started another solution stoichiometry problem, a double replacement between zinc sulfide and hydrochloric acid.
Bio 6 – we discussed the important overall results of mitosis/cytokinesis. We then discussed cancer, uncontrolled cell division, and how cancer cells harm an organism by using up most of its needed nutrients thus depriving normal cells of nutrients/sources of energy.
We began to discuss the composition and structure of DNA from which we will see how chromosomes can be identically replicated so that cells can be identically replicated (during mitosis and cytokinesis).
Tomorrow, I will briefly review the main errors from your cell test and address other questions that you may have.
Bio 7/8- we reviewed the phases of mitosis and related them to the photographs of the cells in these various phases of mitosis. We then discussed the important overall results of mitosis/cytokinesis. We discussed cancer, uncontrolled cell division, and how cancer cells harm an organism by using up most of its needed nutrients thus depriving normal cells of nutrients/sources of energy.
We began to discuss the composition and structure of DNA from which we will see how chromosomes can be identically replicated so that cells can be identically replicated (during mitosis and cytokinesis).
Tomorrow, I will briefly review the main errors from your cell test and address other questions that you may have.
# posted by C @ 1:38 PM 
