Difference between revisions of "PChem312 f20 w9"
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===Friday, Oct 16, 2020=== | ===Friday, Oct 16, 2020=== | ||
Review of Calorimetry data collection: | Review of Calorimetry data collection: | ||
| − | |||
| − | ===Experimental Data=== | + | ====Experimental Data==== |
collected by A. Trenttin (Fall 2020) | collected by A. Trenttin (Fall 2020) | ||
:[[File:Solution_Cal_data.png|600px]] | :[[File:Solution_Cal_data.png|600px]] | ||
''Note: some of the following values are estimates...you must use your values that show up in your lab notebook carbon copy.'' | ''Note: some of the following values are estimates...you must use your values that show up in your lab notebook carbon copy.'' | ||
| − | ====Reaction 1 - data==== | + | =====Reaction 1 - data===== |
:NaOH (s) --> NaOH (aq) | :NaOH (s) --> NaOH (aq) | ||
:- 3.51 g NaOH --> (40.00 g/mol) --> 0.0878 moles NaOH (s) | :- 3.51 g NaOH --> (40.00 g/mol) --> 0.0878 moles NaOH (s) | ||
:- ΔT = 34.4 - 22.0 = 12.4 <sup>o</sup>C | :- ΔT = 34.4 - 22.0 = 12.4 <sup>o</sup>C | ||
| − | ====Reaction 2 - data==== | + | =====Reaction 2 - data===== |
:NaOH (s) + HCl (aq) --> NaCl (aq) + H<sub>2</sub>O (l) | :NaOH (s) + HCl (aq) --> NaCl (aq) + H<sub>2</sub>O (l) | ||
:- 3.43 g NaOH --> (40.00 g/mol) --> 0.0856 moles NaOH (s) | :- 3.43 g NaOH --> (40.00 g/mol) --> 0.0856 moles NaOH (s) | ||
:- ΔT = 35.8 - 22.0 = 13.8 <sup>o</sup>C | :- ΔT = 35.8 - 22.0 = 13.8 <sup>o</sup>C | ||
| − | ====Reaction 3 - data==== | + | =====Reaction 3 - data===== |
:NaOH (aq) + HCl (aq) --> NaCl (aq) + H<sub>2</sub>O (l) | :NaOH (aq) + HCl (aq) --> NaCl (aq) + H<sub>2</sub>O (l) | ||
:- 1.76 g NaOH --> (40.00 g/mol) --> 0.0440 moles NaOH (s) | :- 1.76 g NaOH --> (40.00 g/mol) --> 0.0440 moles NaOH (s) | ||
:- ΔT = 23.9 - 22.0 = 1.9 <sup>o</sup>C | :- ΔT = 23.9 - 22.0 = 1.9 <sup>o</sup>C | ||
| − | === | + | ===Required Report=== |
| − | + | :[[Solution_Calorimetry|Solution Calorimetry Lab Activity]] | |
| − | |||
Latest revision as of 13:51, 16 October 2020
Monday, Oct 12, 2020
Sec 3.7
Joule-Thomson Experiment
- - isoenthalpic discussion/derivation
- - JT coefficient
- heating as cooling on expansion/compression discussion
- - Figure 3.5 - important
Sec 3.8
General discussion
Weds, Oct 14, 2020
Start Chapter 4
Thurs, Oct 15, 2020
- 1) Pulling the Tread...trailer
- - I. CONSPIRACY THEORIES
- - II. The Five Triggers of CONSPIRACY THINKING
- Fear and Loss
- Proportionality Bias
- Conformation Bias
- Patternicity
- The Kernel of Truth
- - III. Prudent PARANOIA
- - IV. INTUITIONISTS vs. RATIONALISTS
- - V. The ILLUSION of UNDERSTANDING
- - VI. THE STORIES WE TELL OURSELVES
- 3) Preparation of "Galeffi effervescente" drink
Friday, Oct 16, 2020
Review of Calorimetry data collection:
Experimental Data
collected by A. Trenttin (Fall 2020)
Note: some of the following values are estimates...you must use your values that show up in your lab notebook carbon copy.
Reaction 1 - data
- NaOH (s) --> NaOH (aq)
- - 3.51 g NaOH --> (40.00 g/mol) --> 0.0878 moles NaOH (s)
- - ΔT = 34.4 - 22.0 = 12.4 oC
Reaction 2 - data
- NaOH (s) + HCl (aq) --> NaCl (aq) + H2O (l)
- - 3.43 g NaOH --> (40.00 g/mol) --> 0.0856 moles NaOH (s)
- - ΔT = 35.8 - 22.0 = 13.8 oC
Reaction 3 - data
- NaOH (aq) + HCl (aq) --> NaCl (aq) + H2O (l)
- - 1.76 g NaOH --> (40.00 g/mol) --> 0.0440 moles NaOH (s)
- - ΔT = 23.9 - 22.0 = 1.9 oC