[This announcement will remain at the top of the page for a while.  Please scroll down to see the latests notes/news for CHM 110 and CHM 111.]

Here’s some information on upcoming tests in CHM 110 and CHM 111.

CHM 110 (01 and 02):  Test 2 grades have been posted on Desire2Learn.

CHM 111 (01):  Test 2 grades have been posted on DEsire2Learn.

CHM 110 (03):  Your second test will be given on Wednesday, 3/10/11.  This test will cover nomenclature of ALL THREE types of compounds from chapter 2, chemical equations (from chapter 2), all of chapter 3, and the molarity material from the last few sections of chapter 4.

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 Wednesday lab section (section 2)!

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

• 0.85163
• 0.84953
• 0.85172
• 0.85281
• 0.85199

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:

[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.

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