subject
Chemistry, 27.11.2019 21:31 miklff

The plot shows the absorbance spectra for solutions of caffeine, benzoic acid, and mountain dew® soda, each in a plot contains three spectra with absorbance on the y axis and wavelength in nanometers on the x axis. absorbance measurements range from 0.0 to 1.5, with increments every 0.2. wavelength measurements range from 200 to 300, with icrements every 100 nanometers. a note states that all solutions contain 0.010 molar h c l. the spectrum for benzoic acid at a concentration of 8.74 milligrams per liter, begins at an absorbance of about 1.3 and 200 nanometers. absorbance sharply decreases to 0.2 at 210 nanometers, then rises and peaks at an absorbance close to 0.8 and 228 nanometers. the spectrum for a 1 to 50 dilution of mountain dew soda begins at an absorbance of 1.5 and 200 nanometers, then sharply decreases in absorbance to 0.6 at 215 nanometers, then rises and peaks at absorbance close to 0.75 at 228 nanometers, decreases, then peaks again at absorbance 0.27 at 275 nanometers. the spectrum for a caffeine at a concentration of 10.88 milligrams per liter begins at an absorbance of 1.45 at 200 nanometers, then rises slightly, with a peak at absorbance 1.5 at 205 nanometers, then decreases sharply in absorbance until 0.2 at 245 nanometers. the plot then peaks again at an absorbance close to 0.6 at 270 nanometers. what is the approximate absorbance of benzoic acid at what is the molar absorptivity of benzoic acid at assume that the path length is ε =

ansver
Answers: 3

Another question on Chemistry

question
Chemistry, 22.06.2019 03:50
Which of the following statements about acidic water is true? a. acid has no effect on the h,o molecules. b. the solution contains a larger number of oh ions than h,o ions. c. the solution contains a larger number of h,o ions than qh ions. d. the solution contains an equal number of h,o ions and oh ions. none of the above e.
Answers: 1
question
Chemistry, 22.06.2019 12:30
Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?
Answers: 3
question
Chemistry, 22.06.2019 15:30
The reactions of photosynthesis occur in the of plant cell? a.mitochondria. b. lysosomes. c. chloroplasts. d. chlorophyll
Answers: 1
question
Chemistry, 22.06.2019 18:00
How is energy related to the change of state represented by the model? atoms gain energy as a solid changes to a liquid. atoms gain energy as a solid changes to a gas. atoms lose energy as a solid changes to a liquid. atoms lose energy as a solid changes to a gas.
Answers: 3
You know the right answer?
The plot shows the absorbance spectra for solutions of caffeine, benzoic acid, and mountain dew® sod...
Questions
question
Mathematics, 22.03.2021 08:50
question
Mathematics, 22.03.2021 08:50
question
Mathematics, 22.03.2021 08:50
question
Mathematics, 22.03.2021 08:50
question
Social Studies, 22.03.2021 08:50
question
English, 22.03.2021 08:50
question
Mathematics, 22.03.2021 08:50
Questions on the website: 13722363