Laboratory – CH147

General laboratory References:
CH147L_2019s
CH141F18LabSafety
ACS-quick Reference
CH141F18ErrorAnalysis
CH141F18ExcelPrimer

CH147 Course Page

Instructional Videos:

 

Date Title
2/11/19 Prelab:  L1-CH147-2019-PrelabLab Handout:  CH147L1-2019-Modeling  lab Worksheet: CH147MMWorkSheet2019
Ball and Stick Modeling: Ball and Stick Modeling
Using Spartan: SpartanInstructions,  ACS Molecule Viewer
2/18/19 WE ARE MEETING IN THE SCHUPF LAB
1) Hand in your completed Lewis Dot Worksheet as you enter the Schupf Lab.2) Read the lab handout: Experiment2-MO-20193) Complete the prelab before the start of lab: E2_Prelab-MO-20194) After lab answer these questions: Exp2 Report Form-MO-2019 (due at the start of lab on week III).
2/25/19 We are meeting on the 4th floor of Keyes.

1) Hand in your lab report from week II at the start of lab.

2) Complete the prelab before the start of lab:  CH141-ExpIII-DPD0Chlorine-2019Prelab

3) Attached are the lab details:  CH141-ExpIII-DPDChlorine-2019

4) Please see the video tutorials above on using the spectrometers and computing linear functions in Excel.

3/4/2019 We are meeting on the 4th floor of Keyes.

1) Hand in your lab report from week III at the start of lab.

2) Complete the prelab before the start of lab.

3) Attached are the lab details:  Chemical Kinetics – Week IV 2019

4) Please see the video tutorials above on using the spectrometers and computing linear functions in Excel.

3/11/2019 and 3/18/2019 Qualitative Analysis of Cations:  CH147-analysis of cations

At the end of this lab you will have the opportunity to confirm your qualitative analysis using a modern instrument for elemental analysis, an Inductively Coupled Plasma – Atomic Emission Spectrometer.  Please see the video below for details on how the instrument works.  A really hot argon plasma heats your sample to 10,000 K to produce atoms with electrons in excited states.   When the excited state electrons return to the ground state they emit light.  The amount of emitted light is proportional to concentration.   Notice a reoccurring theme in the labs – we use light (spectroscopy) to measure the concentrations of atoms and molecules.

3/25/2019 Spring Break

4/22/2019

 

4/22/2019

4/1/2019 Lab Handout: The Solubility of AgBrO3

Error Analysis Details: CH147ErrorAnalysis

4/8/2019 and 4/15/2019 Acid Base Titrations and Buffers:  Acid-Base Chemistry 2019
4/22/2019 The analysis of dissolved oxygen – a REDOX titration:  CH147-2019 Dis.Oxygen

Please see http://web.colby.edu/colbyatsea/2011/02/11/winkler-titrations-measuring-dissolved-oxygen/    for more details on measuring oxygen in the ocean.

4/29/2019 Batteries:  Batteries 2019