Here’s the shared data from CHM 110 Experiment 3B. These are the ratios of mass product / mass barium chloride dihydrate that you need to complete the table on page 74 and answer the questions on pages 75 and 76.  This is data for the Monday lab section (section 3)!

Ratio of (mass product / mass BaCl₂.2H₂O):

• 0.84969
• 0.84716
• 0.84744
• 0.85017
• 0.85078
• 0.84543

The write-up for Experiment 3B (pages 71-76) is due at our next lab meeting. If you have any questions about either the calculations or the rest of the write-up, either come by my office or ask here in comments.

Here’s a handout that describes the calculation procedure for this experiment:  (It’s the same one that was on your desk when you came in to the lab.  I corrected a copy/paste error on the last page – where the handout had “208.23 g BaO”, it should have had “153.33 g BaO”.  None of the other numbers changed.)

[CHM 110 Experiment 3B calculation notes]

I recommend that you use your TI-83 calculator or a spreadsheet to find the standard deviation the lab manual asks you to calculate.