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After you have done your work in the lab, you have data that you need to work with. That requires calculating the results that you have to present correctly. These videos can help you with all of that... but it's best that you get your computer to do the work for you. Use Excel or some other spreadsheet program (such as OpenOffice Calc), and your work will be much faster, easier, neater, and arguably more enjoyable. The videos here show you how to use Excel to get all your laboratory work done.
If you think that you'd rather do your laboratory reports by hand, and not spend the time first learning Excel, you are making a mistake. You will save a lot of time over the course of the semester if you put in a little effort into learning Excel. Your laboratory grades will be higher (due to fewer errors being made), and your ability to work through laboratory assignments will be highly enhanced... for all of your future science courses. Putting in the effort to learning Excel will pay off with high dividends pretty quickly.
This is for the first part of the Rates experiment. It introduces how Excel (and other spreadsheet programs) works, and shows how to find the molar extinction coefficient.
Rates A, Introduction, Calculation of Extinction Coefficient.mp4This is the second video for the Rates experiment, which goes through how to find the concentrations before the reaction starts.
Rates B, Initial Concentrations for the First 3 Runs.mp4This is the third video for the Rates experiment. It goes through how to find the rate order exponents for crystal violet and hydroxide, and how to find the rate constant for the first three runs.
Rates C, Finding Rate Law Exponents and First Rate Constant.mp4This is the fourth and last video for the Rates experiment. It goes through the last part of the calculations, where the rate constants for the last two experiments are found, and where the activation energy is calculated. It also goes through how to make the graphs for all of the five runs.
Rates D, Other Rate Constants, Activation Energy, and All Graphs.mp4This is for the Equilibrium Constant of Bromthymol Blue experiment.
Equilibrium Constant of Bromthymol Blue, Newer.mp4This video teaches how to design a buffer system. This is required before actually starting the Buffers laboratory experiment. A slight mistake was made, which is corrected in the following video.
Designing a Buffer System.aviThis video shows how to design a buffer system. It corrects the slight error that is found in the previous video.
Designing a Buffer System, correction.aviThis is for the laboratory report of the Buffers experiment. It deals with all the calculations except for the design of a buffer system, because that had to be done before the laboratory experiment. There are other videos that teach how to design a buffer system.
Buffers.aviThis is for the Redox Titration of Vitamin C experiment.
Vitamin C Redox Titration 2019.mp4This is the first of three videos for the Amminenickel Synthesis and Analysis experiment. This is for the first part, where the ammonia content of the complex is calculated.
Amminenickel Synthesis and Analysis A, Analysis of Ammonia.aviThis is the second of three videos for the Amminenickel Synthesis and Analysis experiment. This is for the part where the nickel content of the complex is calculated via an absorption graph.
Amminenickel Synthesis and Analysis B, Analysis of Nickel.aviThis is the third of three videos for the Amminenickel Synthesis and Analysis experiment. This is for the last part, where you have to put together all the information from your calculations of your ammonia content and your nickel content. Here is where it is shown how to calculate the actual molecular formula (as well as percent compositions) of your complex.
Amminenickel Synthesis and Analysis C, Determination of the Formula.aviHere is an additional video about the Amminenickel Synthesis and Analysis. It goes through the steps of how to put all your data together to get the final molecular formula for your complex.
Analysis of Nickel.movThis is for the Building Electrochemical Cells experiment.
Electrochemical Cells.aviThis is for the last laboratory assignment of the semester, the Polarimetry experiment.
Polarimetry Lab.aviPage updated
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