Hi, class!  Given that we have not yet discussed buffers in detail in class yet, I have elected to move the deadline for the Buffers WebAssign to SUNDAY NIGHT, 11:59 pm.  The other WebAssign (on Kb and salts) is still due tomorrow night (Wednesday 4/23) by 11:59 pm.  By Thursday you should also have completed pages 10 and 11 in the packet...for those of you absent today a video of today's lesson will be posted by 7 pm tonight.  Quiz Thursday, during our 20 minute period (it will be a problem calculating the pH of a salt).

Happy ICEing!

The link to the video going over stuff for tomorrow's quiz on Le Chatelier and Ksp is now posted, check it out, especially if you were absent today (I'm talking to you, field trippers!)  It's at the bottom of the Unit 9 box on Moodle, for your viewing pleasure.  Popcorn optional.  :)

More Solution Stoichiometry

Fun with Homework 

To start off class today Mrs. Friedmann checked in the three worksheets we had for homework last night.  We then went over these three sheets.  If you missed class, the key is posted on the moodle page under Unit 4 keys.

Fun with Molarity

Next, Mrs. Friedmann passed back our Concentration and Molarity Simulation packets.  We went over these, and the key is also posted on the moodle page under Unit 4 Keys.  

Fun with Supersaturation

After that, Mrs. Friedmann showed us the demonstration of the supersaturated sodium acetate solution.  The sodium acetate packet was put in boiling water to heat it up so the the water could dissolve all of the sodium acetate.  Then the packet was slowly cooled down until it became supersaturated.  The liquid was very syrupy and slow moving.  When Mrs. Friedmann flipped the metal disk around that was inside the packet, the sodium acetate went out of solution and crystalized.  The packet became warm because all of the heat energy we put into it when putting it in the boiling water is now being released.  Below is a video of this happening:

  

More Fun with Homework

This brought us up to the end of class.  Our homework for tonight is the two worksheets that were handed out in class today which are the Molarity Thinking Problems worksheets.  These can be found in the Unit 4 handouts folder.  If you are struggling with these problems, post them on the blog!  Try to check the blog again by 10 PM and see if you can answer anyone's questions.

Fun with Blogging

The next blogger is...Valerie K

           Hi, everyone!  Thanks for posting your ratings of last week's tutorial animation on nerve gases (posted on Moodle...check it out if you haven't yet).  Thought I'd share the results of my little survey with our scientific community (see below).  Looks like the group overall gave it a C for interest level and a D for ease of understanding.  I thought it was interesting that the average scores for both classes on ease of understanding were identical.

           Thanks again for participating!

	Survey of Animation Tutorial on Sarin Gas	Number of participants	Average score, 1-10, “Was it interesting?”	Average score, 1-10, “Was it easy to understand?
	Period 4	16	7.3	6.2
	Period 5	24	7.0	6.2
	Periods 4 and 5 together	40	7.2	6.2

Hello, Period 5!  

Congratulations on completing your first unit test in Honors Chem!  You get a little bit of a breather for a day or two...your next big assignment is the lab write-up, which is due on Monday, 9/16.  So that you are clear on the expectations for this assignment please be sure to review the lab report directions, which are posted in the Unit 1 Labs and Activities folder.

A word about the blogs you have done so far:  they are EXCELLENT.  I am truly impressed at the fantastic job everyone is doing and the amount of very helpful detail you are including.  Please keep up the good work!  For those who have not yet blogged, be sure to review the existing posts for inspiration and follow the examples of your peers.  There is no need for anyone to blog tonight, since we took our unit test today.  FYI, there will be no need for a scribe post tomorrow, either.  The next scribe will be posting on MONDAY, 9/16.

Your homework for tonight is to click through the animation (posted on Moodle) explaining the physiological effects of nerve gases.  The link to this animation is the bottom-most item posted in the Unit 1 box on Moodle.  

After you have viewed the animation, I would like for you to put a comment under this post answering the two questions below.  Include your first name and last initial in your comment, please!

1)  Did you find the animation interesting?  Please rate it on a scale of 1 to 10, with 1 meaning "It was completely boring, I could hardly get through it," and 10 meaning "It was very interesting, I really enjoyed clicking through and reading it".

2)  Did you find the animation easy to understand?  Please rate it on a scale of 1 to 10  with 1 meaning "I didn't get it at all, it was much too difficult to understand," and 10 meaning "I feel like I completely understood it even though I've only had one year of biology and three weeks of chemistry".

Welcome to our class blog!
     Think of this space as an extension of our classroom.  We are a community of learners (can I call us a chemmunity?) and this is the space where we will help each other learn the concepts we explore in class.  This will be an especially good place for you to visit when you have been absent.

How is this going to work?
     If you have a facebook or twitter account, you are kind of already a blogger.  Blogging is just posting articles, thoughts, pictures, etc., onto a community (chemmunity) space, where many people can see them.  
     Each day a different person in the class will be responsible for writing a scribe post of that day's class.  The scribe post will not only summarize what we did in class that day, but will also provide an explanation of that day's topic.  In your explanation you may choose to include class notes, graphs or other images, links to explanatory videos, and questions you still have about the topic.  Anyone is free to respond helpfully to posted questions.  Examples of how to solve problems are also a great thing to include in your post!
     The person who writes the scribe post for a given day will decide who the next scribe will be.

How do I become a scribe post author?
     I will send you an invitation via your school email address.  When you reply, you will be able to write posts.

How do I publish a post?
     Blogger is very user-friendly, and I think you'll find posting to be pretty self-explanatory.  But take a look at this video to see how it's done....



How will I know it's my turn to post?
     Posted on our Moodle page is a class roster.  When you have finished your scribe post, at the bottom of it, write "The next scribe post author is ______" and select any name you like from the list.  Next day in class it will be that person's turn to write the scribe post.

How often will I have to post?
     Each person needs to post a minimum of once per quarter, four times per school year.  You will label your scribe post with your name so we know how many times you've posted.

What are labels?
     Labels are sometimes referred to as "tags" (kind of like "hashtags" on Twitter).  They will be a very important part of how we keep our blog organized, and they will help me keep track of your contributions through the year for your grade (yup, you'll get a blogging grade).  For every post you complete you must include the following three labels:

1. Your name.  Please use your first name and last initial (ex: Jane D.) 
2. The unit we are studying (refer to the titles used in Moodle for each unit).
3. The topic we are studying.

So...I can post anything?
     Well, no, of course not!  Although our blog will be restricted to our class, you already know that there really is no such thing as privacy on the internet.  Blogging especially is inherently a very public arena.  Anything you post on the internet will always be on the internet.  You can delete a post immediately, but you have no way of knowing that it does not still exist somewhere in cyberspace.  Also, this blog is an extension of our classroom, so of course any rules that apply in our classroom apply on the blog.  Never say anything online that you would not be proud to take credit and responsibility for in person.

I get it Ms. Friedmann.  What are the rules of digital ethics?

1. Use only your first name and last initial.
2. NEVER post pictures of yourself or classmates.
3. NEVER give out or record personal information on our blog.  The world is not entitled to the details of your private life.
4. Be respectful, whether in agreement or disagreement.
5. Never add a link to your post that you have not thoroughly read.  As soon as you post it, you are associated with it.  Make sure you are okay with that.
6. Credit where credit is due...if the words are not your own, tell us whose they are, or you are plagiarizing.

     Remember:  Our blog is a public space.  These posts could affect your future.  Many employers already conduct internet searches on job applicants and employees.  College admissions offices do it, too.  When that potential boss in 2025 discovers thoughts you posted in your younger years, what impression do you want to leave her with?  Never say anything online that you would not be proud to take credit and responsibility for in person.  Not on blogger, not on facebook, not on instagram, not on twitter...not anywhere.  The world has enough negativity in it...make your digital marks positive ones!

     You may have seen this video already; if not, please take a few minutes to watch:
   

Happy new school year!  I'm looking forward to our time together.

:) Ms. Friedmann