Laboratory Handout Downloads and Prelab Advice
Labs and supporting information are linked below in .pdf format and are readable using Adobe Reader. 

This standard plugin is free over the internet. You should print and read these well in advance of the scheduled lab activity. 

Laboratory safety agreement (Must be completed and submitted before working in lab.)

 

Experiment

Prelab Advice, helpful downloads available

Graphing assignment

I will introduce this activity during lab, but you will complete it outside of class. 
See me during office time for help.

Sugar from density G

“The Case Against Sugar”  S. K. Ritter CEN Aug. 4, 2014

 

Is Aspartame Safe?  ACS Reactions

KNO3(aq) thermodynamics G

 

 

dye + ClO- kinetics G

Print this figure showing the structure of crystal violet and a related dye, malachite green.

LeChatelier’s principle 

 

 

Keq for Fe-SCN G

Download and bring this Excel spreadsheet to lab (using your laptop) if you want to use this during lab to help with the graphing required.

 

Weak acid titration G

 

 

Ksp of KHT

 

 

Making Buffers

Before coming to lab, complete all preliminary calculations for making your particular buffer (based on the pH assigned).  Know what acid/base system you will use and how much you need to measure to make your buffer.

Q1 of the pre lab is a two part problem.  Dilution to find [H+] then pH of a strong acid.

For Q3 of the prelab use Tables of Ka values in the text. 

Ox numbers/Redox Balancing

There is no prelab to hand in.  However, read the required lecture text sections mentioned on the handout, and complete as much of the handout as you can before coming to lab.  We will complete the worksheet during lab, handing it in at the end of the period.

Electrochemical cells

 

 

G Graphing is required for these experiments. Electronic graphs are encouraged.  Feel free to bring your laptops to do

   this in class.  Alternatively, you can make e-copies of your graphs using your TI calculators.