Week of 10/27

Monday: Redox titration lab. This took longer than I thought! Those of you who understood what was going on on Friday were ready to go, but so many of you were not…

Tuesday: Today we worked on balancing acid/base reactions. Here’s the link to Khan Academy to help if you need to see instructions for these still

Wednesday: We spent the first half working on the Redox titration lab.  The second half we started going over some activity series concepts using the powerpoint questions.  I tried to do some harder ones on the fly, but realized I needed to think about how to teach this better…

Thursday: Handed out this packet to help you interpret activity series for redox reactions that aren’t so straightforward.

Friday: Did some mental math practice on percents and fractions. The goal was just to talk about how to solve the various problems/ to learn different strategies that might be useful.  Next we started our gases unit by learning PV=nRT, did some problems in the textbook and then did the baggy challenge.

Test on Redox on Monday!

Week of 10/20

Monday: Today we used the first half of class to work on the lab procedures and calculations.  During the 2nd half of class we talked about how to write a conclusion and do an error analysis.  Used this error analysis form.

Advice for writing a conclusion

Lab is due Friday:

  • Group Procedures need to be SHARED with me.  DO NOT put in google classroom.
  • Individual pictures of lab notebook, data collection, calculations and TYPED CONCLUSION need to be turned in in GOOGLE CLASSROOM

HW: Watch first 4 videos found here on Unit 4 page. and work on lab

Tuesday: Today we did a warm-up to review concepts from video.  We also did the redox text frame and this page (answers), to learn how to predict oxidation states.

HW: Work on lab write-up.  Watch activity series video here. Do text frame, this page (answers), and Single replacement reaction practice in big packet (pg 46)

Wednesday: Today we worked on the Activity Series Simulation. There was not enough tiem to do the experiment part, too so only the simulation was completed.   This lab will be due Monday.

Thursday: Today was short because we had an early release day. We started with a problem from one of the worksheets on how to determine oxidation state, whether a rxn is redox and what gets reduced/oxidized.  Then I went over how to balanced redox reactions in acidic solution. If you missed it, instructions are in the packet I gave your or in your textbook. I don’t have a video online, but I’m sure there’s one somewhere.

Friday: The first half we did the experimental part of the activities series lab and had some interesting results because the iron solution was acidic! We also had time to decide on an activity series for the experimental part.  You will need to do the same thing with your simulation.   The second half of class we went over what titration is and how to do a redox titration.  If you missed class you should watch the redox titration video in Blackboard under the homework section.

1) Finish lab for Alkali Carbonate and turn in by Sunday 8 am

2) Finish Activity Series Lab by Monday

3) Work on balancing redox.

On Monday we will do the Redox Titration lab,

We will review on Tuesday and take a Quiz on Wednesday!

Week of 10/13

Monday: No class b/c of professional work day.

Tuesday: Started lab (alkali metal carbonate lab)

Wednesday: PSATs so only Srs worked on lab

Thursday: was supposed to be the test, but I was easily talked out of it.  Most of you worked on homework to prepare for test Friday.

Friday: Test and some finished lab / filtering/ getting final masses.  Monday we will work on lab some more so that is not homework this weekend.  On Monday we will get in groups, finalize procedures, make sure everyone has all the data they need and go over how to write conclusions since many of you need to improve in this area.

Homework this weekend is to start preparing for our next unit on Redox Reactions:

  • Watch first two videos here (they are flash so will need a computer not an iphone, I think) http://www.mwiseman.com/courses/chem_ap/units/unit08.php
    • Redox Introduction
    • Determining if a reaction is a redox reaction
  • Watch these two videos found under  unit 4
    •    Single Replacement Reactions Video found under unit 4
    • Introduction to Redox / Reactions in Aqueous Solutions: Oxidation/Reduction under  unit 4
  • Optional: Read section 4.5

Week of 10/6/14

Monday: Today we went over double displacement reactions, solubility rules, net ionic, complete ionic and molecular equations and how to connect them with pictures. Notes.  I think we had some time to work on homework problems, too

Tuesday: Today we reviewed complete, molecular and net ionic and introduced the idea of gravimetric analysis.

Wednesday: Today we started with a warm-up on complete, molecular and net-ionic reactions and then the rest of the block you had to work gravimetric analysis problems.

Thursday: We started with drawing pictures of partially soluble, fully soluble and weak and strong electrolytes. This took most of the class. A couple of you had great insights that the difference between partially soluble and saturated is hard to tell…mainly because we need to compare two compounds to determine partial solubiliity and compare 2 different amount of dissolved solute for teh same compound to determine saturation.  I went over a quick molarity to molarity problem – volumetric analysis and then in the last 10 minutes I handed out the IB problem that had 3 reactions and crazy SI units that made it more challenging.

Friday: We started with identifying pros and cons of complete, net ionic and molecular equations.  Talked about them briefly then moved on to finish the worksheet we’d started yesterday.  The process of having slept on it must have helped b/c there wasn’t so much consternation this morning! Next we did the mental math challenge test to set a baseline for improving. 10 minutes for 20 problems is about right.  The second half of class you worked in groups of 6 to plan a lab for determining the alkali metal in an alkali metal carbonate.  Also, I moved test to next Thursday and decided to provide all the solubility rules.