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Example: Gurye Fitting and Estimation Galculations.
The
rate of
a
certain chemical reaction depends
on the
initial
concentration
of
one
chemical.
When the reaction is run repeatedly, varying only the
initial
concentration
of the
chemical,
the following
rates are
observed:
X
Goncentration
.050 .075
.
L0
(moles per liter)
Y Rate
\
.00620 .00941 .01.40 .01'46
.0230
(moles
per liter-
seconds)
Assumirg a linear relationship,
calculate
the
correlation coefficient
and slopJ of the line.
Use
lineir
estimation to calculate the rate of the
reaction when
the
concentration equals 0.09 moles/liter.
Keys:
|fsrArl
Display:
l@
'
ITEl'l(l)=?
.05
ft{PUTI
.075
trrrt-Purl
.1
frNffil
.12s
flNpu-Ll
.2
ENPUTI
ITEl'l(6)=?
T0THL=B
'
55BB
ffi
ffi
CONC
EtPUil
ITEl'l
(5)=?
ffi
ffi
ITEl'l(1)=?
.L25
.20
Description:
Displays the STAI menu.
Clears
the
current list.
Enters
the
concentration
data.
Displays the STAI menu.
Names the
list
CONC.
Switches
to
a
new,
empty
list.
\
v
v
\-,
'\,t
\,t
\-,
\,/
\./
\../
\./
v
\./
\-,'
If
you want to preserve the current list, skip the next step.
Instead,
name the
list
and then
press
ffi
ffi.
4=
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