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Chemistry 103/113 Laboratory |
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This Week |
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Week 2 of Expt
2: What Anions Are In Your
Drinking Water? ·
Quiz 1: Study Assignments A, B · Complete/Check
Study Assignment C |
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Next Week |
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Expt
3: Build a Better Hot Pack ·
Complete/Check
Study Assignment E |
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Notes for Today |
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Ion Chromatography (IC): Identifying Anions and Measuring
Concentrations ·
Tasks for Today
(working in groups) o
Organize
information from chromatograms §
retention times §
peak areas §
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Use Excel to make a standard curve for your group’s anion § typical standard curve · ·
peak area is
proportional to anion concentration ·
use data from
entire class (15+ points!) ·
prepare a scatter
plot and do a linear curve
fit ·
find equation of
the best fit line to use in spreadsheet calculations o
Identify anions in
each drinking water §
use retention times
known from anion standards o
Find concentration
of each anion in each drinking water §
convert peak areas
into concentration via
spreadsheet calculations §
use best fit lines
from standard curves Week 2 Report o
Data section due today at end of lab o
See Writing
Your Report for remaining
requirements o
Make sure you have
all graphs/spreadsheets before leaving today. o
Work independently
on report calculations/questions ·
Due tomorrow, 9
p.m., TA folder outside 184 |
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