Use Beer's Law to calculate the concentration of a solution of compound X, when the absorbance at 280nm is 0.720. The & value for compound X is 5988M-¹cm ¹ and the path length for the cuvette is 1.00cm. Answer should be entered assuming units of millimolar (mM).

Use Beer's Law to calculate the concentration of a solution of compound X, when the absorbance at 280nm is 0.720. The & value for compound X is 5988M-¹cm ¹ and the path length for the cuvette is 1.00cm. Answer should be entered assuming units of millimolar (mM).

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...

See similar textbooks

Related questions

Q: Extinction coefficient of a dye is 7200 M-1 cm-1. Assuming a path length of the cuvette to be 1 cm,…

A: Extinction coefficient (ε) = 7200 M-1cm-1Path length (l) = 1 cmAbsorbance (A) = 0.300 Concentration…

Q: Examine the given Beer's law standard curve for an unknown dye measured in a 1.0 cm cuvette.…

A: From the graph given, we can see that the best fitter line equation is given as Y = 15200 X - 0.018…

Q: 400 450 500 550 600 650 700 wavelength (nm) : Wavclength of maximum absorbance for base form ph…

Q: Assume for the following situations that Beer’s law remains linear. For (a) and (b), indicate…

A: Beer’s law is given by, A=ε×c×lWhere, A=absorbance of the solution ε=…

Q: Suppose that a solution has an absorbance of 0.226 at a wavelength of 450 nm. If the concentration…

A: Given the absorbance of the solution, A = 0.226 Concentration of the solution, C = 24 μM path…

Q: What is the

Q: If you plot the absorbance measurements of solutions vs. their concentrations, what is the slope…

A: Molar Absoptivity Problem A= ECL Slope = EL Step-2 Has Picture that has proper explanation with…

Q: What is the maximum absorbance of in which caffeine absorbs?

A: ### 1. **Understanding Absorbance and UV-Vis Spectroscopy**- **Absorbance:** It's a measure of the…

Q: Calculate the concentration of Cu in the sample by calibration curve using the following data…

Q: A: Find the concentration of a solution, the path length (1.5 cm),the molar absorption coefficient…

A: Path length = 1.5 cmAbsorption coefficient = 0.95 cm3mol-1cm-1Absorbance = 0.8

Q: Tryptophan absorbs at a maximum wavelength of 280 nm. In a cuvette (1 cm-optical path length), a 200…

A: The answer for this problem is provided below in great details within the attached figure.

Q: What is the molar concentration for a solution with a measured absorbance of 0.212 based on this…

A: According to Beer-Lambert’s law, the absorbance of solution can be expressed as:

Q: A solution has an absorbance reading of 0.238 AU. Using the calibration curve below, determine the…

Q: If the absorbance of 0.291 M copper (II) chloride solution is 0.497 and the path length of light is…

A: According to Beers Lambert Law- A=ε.l.cwhereA-Absorbanceε-molar extinction coefficientl-path lenght…

Q: A sample in a 1cm cuvette gives an absorbance reading of 0.6. If the absorptivity for this sample is…

Q: How do you calculate the amount of µmoles, if the absorbance is 0.019, the extinction coefficient is…

Q: A 0.012mM sample of a compound in water has a molar absorptivity of 27,2671 1/m^-1cm^-1 at 573nm in…

Q: a) Determine the concentration of your prepared Iron (III) Salicylate Dianion solution (pure ASA) in…

A: Beer-Lambert Law, also known as Beer's Law, relates the concentration of a solute in a solution to…

Q: The absorbable of a solution is measured to be 0.806. If the path of the curvette is 1.07 cm, and…

Q: 1. Virtual Lab Questic particular waveleng absorptivity? What same conditions?

A: Absorbance = -Log [Transmittance] Transmittance = 66 % = 66100 = 0.66 Absorbance = -Log0.66 =…

Q: For one of your trials during the equilibrium experiment at room temperature as described in the lab…

A: To find out the equilibrium constant for the following reaction Fe3+(aq) + SCN-(aq) ⇌…

Q: The following data are obtained from three standard soltions using UV-Vis spectroscopy: What is…

A: Given : Absorbance of solution at 255 nm= 0.180 And molar mass of analyte = 188.65 g/mol

Q: Graphs are a common data analysis tool used in all branches of science. The given graph represents…

A: The graph between Absorbance and concentration of sample is used to find the concentration of…

Q: What is the absorbance, A, of a 0.0170 M solution with a percent transmittance of 46.0%? A = Suppose…

A: Relation between absorbance and percent transmittance ---> A = log(%T) Where A= absorbance…

Q: Review Beer's Law. absorbance of 0.75 at 660 nm. An unknown solution of the same metal ion, on the…

A: Given: Concentration of known sample = 2.5 M The absorbance of known sample = 0.75 The absorbance…

Q: Would I react faster because it is closer to carbon 2? I just need the answer and reasoning

A: addition reaction of alkenes proceeds via the formation of a carbocation intermediate. More the…

Q: What

A: As, you haven't provided value of ε It is solved using, ε=10,800 M-1.cm-1 We know that A=εlc

Q: Average absorbance, Molarity of Fe(NO₂)), 0.2M Volume of Fe(NO₂)) = 5.00mL Moles of FeMolarityx…

A: The balanced equation for the equilibrium reaction is: Fe3+(aq) + SCN-(aq) ⇌ Fe(SCN)2+(aq) ; K = ??…

Q: Turn in the graph you produced in Excel The value of absorptivity constant (k) is What is the…

A: The graph between absorbance versus concentration is to be plotted here.

Q: The max of aspirin (molar mass 180g/mol) in neutral solution is 225 nm and e is 650 mol ¹Lcm-1. An…

A: Concept of Beer's law is required for calculation of concentration of aspirin solution According to…

Concept explainers

Spectroanalytical Methods

Spectroanalytical methods measure the wavelength and intensity of radiations that are either emitted or absorbed by a molecular or atomic species. These methods are useful for evaluating the electronic or atomic arrangement of the molecules of a given analyte.

Question

Use Beer's Law to calculate the concentration of a solution of compound X, when the absorbance at 280nm is 0.720. The &
value for compound X is 5988M-¹cm-¹ and the path length for the cuvette is 1.00cm. Answer should be entered assuming
units of millimolar (mM).

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1: Write the mathematical form of Beer's law

VIEW

Step 2: Find the concentration

VIEW

Solution

VIEW

Step by step

Solved in 3 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

Calculate the absorbance for a solution containing a colored species with a percent transmittance (%T) of 58.23.
Calculate the equilibrium concentration of FeSCN^2 Please explain.
Calculate the expected absorbance of a 20mg/L. solution of potassium permanganate at 525m. Note the Mt of potassium permanganate is 158 g/mol and assume the molar absorptivity at 525mm is 2100 M~1 cm*1. Round answer to 2
Examine the given Beer's law standard curve for an unknown dye measured in a 1.0 cm cuvette. Absorbance of Unknown Dye at 542 nm 0.5 E 0.45 0.4 0.35 0.3 0.25 0.2 y = 15200x - 0.018. 6 0.15 * 0.1 5.00E-06 1.00E-05 1.50E-05 2.00E-05 2.50E-05 3.00E-05 3.50E-O5 Concentration (M) What is the concentration (in M) of a sample of the unknown dye with an absorbance of 0.16 at 542 nm? Type answer: ВАCK Question 8 of 8 REVIEW A «tv A O Absorbance at 542 nm
a) If an unknown sample containing FeSCN2+ has an absorbance of 0.542, what is the concentration of FeSCN2+ in the unknown sample? b) What are the units of concentration? c) If the path length of light is 13.5 mm (millimeters), what is the absorptivity coefficient, ?ε, for FeSCN2+? d) What are the units of the absorptivity coefficient, ?ε?
The concentration of a dilute aspirin solution is 0.000530 M 0.000530 M . Standard solutions of this compound were used to prepare a Beer's law plot which gives a slope of 1550.1 M −1 1550.1 M − 1 . What is the expected absorbance value for the aspirin solution?
Please help
Examine the given Beer's law standard curve for an unknown dye measured in a 1.0 cm cuvette. Absorbance of Unknown Dye at 542 nm 0.5 0.45 0.4 0.35 0.3 0.25 0.2 y = 15200x - 0.018. 0.15 0.1 5.00E-06 1.00E-05 1.50E-05 2.00E-05 2,50E-05 3.00E-05 3.50E-05 Concentration (M) What is the molar absorptivity (in M-1cm-1) of the unknown dye at 542 nm? Type answer: 0.25 Incorrect Absorbance at 542 nm
What is the % transmittance when the absorbance is 1.67
A colored ion solution has a concentration of 0.200 M with a measured absorbance A = 0.880. Another ion solution made of the same chemicals has an absorbance A = 0.172. What is the concentration of this unknown sample solution?
A standard curve of absorbance vs. concentration has a linear trendline of y = 0.56x + 0.987. Use this trendline to calculate the concentration of an unknown sample that has an absorbance of 1.245.
Can you help me on questions 2 AND 3