Chem 107 exam 1 (6 7 8 9)

Experiment 6

Thermochemistry, heat changes
what are the equations

∆H=HC x ∆T
Experiment 7

Gases volume released
R = ? in PV=nRT

.08206
Experiment 8

Titrations / calibrations
molarity of final is

see sheet
volume delivered is

mass x 1.0009 / density = volume delivered
Experiment 9

Reaction rates
exp 9 equation for final MV

MV=MstockVadded
exp 9 equation for rate

rate = .5 [S2O3 (2-)] / t
exp 9 arraineus equation

ln(k) = -Ea/(RT) + ln(A)
exp 9 arrhenius equation graph

a plot of ln(k) versus 1/T gives a straight line, slope equal to -Ea/R

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Chem 107 exam 1 (6 7 8 9)

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Chem 107 exam 1 experiment 6 7 8 9

Updated

2010-02-19T23:05:00Z

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