There is no quiz this week! However, make sure to have your lab notebooks current and complete with this week's procedure properly outlined.
You will now find a link to a wiki page (on the CH145 main page, below the Message Board link) in which you can sign up for your second office visit. There are 30 slots within 6 blocks of time for the 24 of you, so hopefully it won't be a problem. You will need to directly edit the wiki page to sign up, but there is an instruction there to help you.
The laboratory handout for next week has been posted. The one handout covers both next week and the following week. There is also a supplemental document on the instruments you'll be using (Ocean Optics spectrophotometers). Don't forget, you'll have a lab quiz each week!
Your third HW assignment is up and due next Friday, October 16th at 5 PM.
... the CORRECT practice exam's answer key that is. Sorry about that.
The 4th lab is posted. You will have a pre-lab quiz.
Have a nice weekend!!
The purpose of the laboratory report write-up exercise is to learn how to write like a scientist. Colby Department of Chemistry's goal is for each student to graduate from Colby College as a Chemist, with all the tools you need to succeed in your field of study. You need to learn how to effectively convey information in a thorough and concise manner by presenting the significance of your data in an attractive and informative method.
There are now two links available for you to use to help you write your laboratory reports and discussions
The ACS author guidelines pdf instruct you on the proper format for presenting all data and text. Some of the information may not apply to you; look at the headings to distinguish which tool will be most helpful to you in writing your report. Specifically, look at the guidelines for presenting charts, graphs, molecules and other such figures that pertain to the laboratory discussion, as well as how to properly cite references and an outline of what should be reported and discussed in each section of the laboratory report.
The second link in an example paper concerning the methods of molecular modeling. The information may be a bit advance for some of you, do not get frustrated if you do not understand the paper in full context, however you should still read the paper and use it to give you a visual idea of how to discuss your result values and their significance, as well as present data and figures accordingly.
145 Laboratory: Here are a few comments to help you write your lab discussion. 1.) All lab discussions should include name, date, lab section, and a title.
2.) Make sure to begin the discussion with a clear and concise objective. 3.) Make sure to write in complete sentences and check for punctuation as well as grammar errors. Colby has a writing help center located in the Farnham building if you need any assitance. 4.) Include the significance of the laboratory questions and data, do not just answer the questions.
Example, if the bond order designated by WebMO is different than the qualitative predicted Bond order, then you ought to explain your reasoning for this discrepancy. 5.) References for literature values, diagrams, bond lengths, (anything that needs referencing) needs to be cited, and in proper notation. At the end of laboratory 3, you will find a literature cited section. You can use these two references in your discussion or you can use them as a template format on how to properly cite a literature reference.
Lab 3 is posted ... you will have a pre-lab quiz! Please read the lab handout thoroughly before coming to lab.
The third lab assignment will be posted very shortly ... our apologies. We're actually trying out a new molecular orbital modelling program and we're still ironing out the issues. It will be posted one way or another by the end of the day on Friday.
I have increased the quantity of assigned problems for the second homework assignment and alterred the due date until next Friday (October 2nd). This is a MUCH more substantial problem set, so please do not wait until the last minute to complete it.
I'm going to wait a bit before I assign Homework Assignment two. I'm goint to be lecturing kind of randomly relative to the book's 6th, 7th, and 8th chapters. Your second homework will not be due next Friday, but sometime the following week. Have a nice weekend!
Reading assignments, thought questions, and reminders are posted regularly on that link. You are responsible for keeping track of it.
Just as a reminder, make sure to fill out your lab notebook properly before coming to lab. There is an example format how to fill out a lab notebook in your laboratory syllabus, plus for your personal visual tool, I have made an example format available for you on the wiki lab webpage. Just click on the link to view it. Most of you are continuing on with research, you will need to know how to maintain and organize your lab notebook.
The purpose of a laboratory notebook:
1.) To replicate the experiment if need be. In order to do this, the lab notebook needs to be organized and have enough information and data that someone can just pick up your lab notebook and do the experiment.
2.) Second, if you have any errors with your data, or need to reference information for later use, having all of that in your lab notebook is a hard copy for you to refer, especially to check for inaccuracies in the data and calculations.
3.) The lab notebook is a tool that will help you prepare for an experiment before doing it. You can organize data, charts, tables, look up formulas, equations, chemical health concerns, etc. In other words, the lab notebook helps you be prepared.