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Beer's Law states that A=abC. If a plot of A vs. C does not pass through the origin, Beer's law does not apply in this case. O True O False

Beer's Law states that A=abC. If a plot of A vs. C does not pass through the origin, Beer's law does not apply in this case. O True O False

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Beer's Law states that A=abC. If a plot of A vs. C does not pass through the origin, Beer's law does not apply in this case. O True False
Transcribed Image Text:Beer's Law states that A=abC. If a plot of A vs. C does not pass through the origin, Beer's law does not apply in this case. O True False
Our Lab X4 procedure calls for measuring absorbance of light by the phosphate-vanado-molybdate complex formed in this analysis method. We will select 420 nm light in a spectrophotometer because the light absorption response is very strong at this wavelength (as shown in Lab X4 Figure 3 of the Lab). The absorption response curve shown in Figure 3 suggests that the test would be more sensitive if light less than 420 nm is selected, but this usually isn't done because if is present in the sample of water it will throw off the results, since it also absorbs light in this sub-420 nm range. O ferrous iron ions O very low concentrations of phosphate O very high levels of phosphate O Fe3+
Transcribed Image Text:Our Lab X4 procedure calls for measuring absorbance of light by the phosphate-vanado-molybdate complex formed in this analysis method. We will select 420 nm light in a spectrophotometer because the light absorption response is very strong at this wavelength (as shown in Lab X4 Figure 3 of the Lab). The absorption response curve shown in Figure 3 suggests that the test would be more sensitive if light less than 420 nm is selected, but this usually isn't done because if is present in the sample of water it will throw off the results, since it also absorbs light in this sub-420 nm range. O ferrous iron ions O very low concentrations of phosphate O very high levels of phosphate O Fe3+
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