Standard Solutions and Determination of ɛ Use the slope and the path length to find the molar absorption coefficient for Fe(SCN)²* at 430 nm, including units.

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Standard Solutions and Determination of ɛ
Use the slope and the path length to find the molar absorption coefficient for Fe(SCN)²+ at 430 nm,
including units.
Transcribed Image Text:Standard Solutions and Determination of ɛ Use the slope and the path length to find the molar absorption coefficient for Fe(SCN)²+ at 430 nm, including units.
[Fe(SCN2+)]equ, (M)
y = 4.26442 × 10³ x + 0.0202852
R2 = 0.999902
In the laboratory you measured RMSE, however here you will enter the R? value displayed on the graph.
SLOPE, (M-1)
INTERCEPT
R2
Unrounded
4.26442 × 103
0.0202852
0.999902
Rounded
4.264 × 103
0.02029
0.9999
CALCULATED VALUE
• The path length of the vial is 1.00 cm.
Unrounded
Rounded
Molar absorption coefficient for Fe(SCN)2+,
(M-1 cm-1)
4.26442 × 103
4.26 x 103
Transcribed Image Text:[Fe(SCN2+)]equ, (M) y = 4.26442 × 10³ x + 0.0202852 R2 = 0.999902 In the laboratory you measured RMSE, however here you will enter the R? value displayed on the graph. SLOPE, (M-1) INTERCEPT R2 Unrounded 4.26442 × 103 0.0202852 0.999902 Rounded 4.264 × 103 0.02029 0.9999 CALCULATED VALUE • The path length of the vial is 1.00 cm. Unrounded Rounded Molar absorption coefficient for Fe(SCN)2+, (M-1 cm-1) 4.26442 × 103 4.26 x 103
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