Tuesday, October 18, 2011
Tues-Day 2
AP Chem - we did a gas stoichiometry problem that also used Dalton's Law of Partial Pressures to determine the total pressure due to the gases collected over water, one of which MUST be water vapor.
We then set up another gas stoichiometry problem in which the reactants are initially in separate containers or "bulbs", then they are mixed (thus changing the volumes but NOT the initial moles of each), and then they are reacted with the introduction of some source of activation energy (a taser, etc.).
Bio - HW NOTE: we did not get to objective 18, so do not answer that . We will cover that together in lab tomorrow.
We saw animations of various examples of active and passive transport, while also reviewing some organelles and life functions.
We also went over osmosis in cells in hypotonic and hypertonic solutions.
In 7/8, we saw how chemical INDICATORS can show us the presence or absence of a given substance.
This will lead into our lab in which we will, using indicators, "see" whether a given substance diffused across a membrane.
We then set up another gas stoichiometry problem in which the reactants are initially in separate containers or "bulbs", then they are mixed (thus changing the volumes but NOT the initial moles of each), and then they are reacted with the introduction of some source of activation energy (a taser, etc.).
Bio - HW NOTE: we did not get to objective 18, so do not answer that . We will cover that together in lab tomorrow.
We saw animations of various examples of active and passive transport, while also reviewing some organelles and life functions.
We also went over osmosis in cells in hypotonic and hypertonic solutions.
In 7/8, we saw how chemical INDICATORS can show us the presence or absence of a given substance.
This will lead into our lab in which we will, using indicators, "see" whether a given substance diffused across a membrane.
# posted by C @ 6:21 PM 
