(a) Alizarin (structure shown below) is a red dye used for dyeing textile fabrics. Its extinction coefficient ( is 4895 M'xcm' at a of 430 nm. Calculate the concentration of alizarin in aqueous solution (measured in a cell of pathlength 0.1 cm) if the absorbance value at 430 nm is 0.5. он OH

(a) Alizarin (structure shown below) is a red dye used for dyeing textile fabrics. Its extinction coefficient ( is 4895 M'xcm' at a of 430 nm. Calculate the concentration of alizarin in aqueous solution (measured in a cell of pathlength 0.1 cm) if the absorbance value at 430 nm is 0.5. он OH

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: C5H100 1t, 1H) 8 PPM (t, 2H) (9p, 1H) (d,

Q: D ue (i) and (iv) are true (iv) are true Which of the following is/are true regarding the magnitude…

A: Step 1: In the given structure Ha and Hc proton are in tarns position to each other so the 3Jtrans…

Q: What would be the difference in the colors of the compounds at pH = 3?

A: The presence of specified groups containing lone pairs tends to alter the wavelength as well as…

Q: (b) The infrared spectra of cis- and trans-3-hexen-1-ol are shown below. Assign a structure to each…

Q: Which of the molecules below exhibits the following UV/Vis absorption spectrum? Assign the peaks in…

A: The UV/Vis absorption spectroscopy is a technique in which a molecule is irradiated which UV/Vis…

Q: P {'E inact

Q: ) Identify the structure, assign peaks, and J values for an organic compound C,H30 with NMR. (CDC13,…

Q: Based on the information provided, determine the structures of compounds. (b) Assign all peaks in 1…

A: Structure of unknown organic compound based on the given spectral data is Nitropropane.

Q: 2 (b) In the following reaction, compounds B or C might be formed. HCI or в с (i) By using the 'H…

Q: 5 thyl propyl ether (M=88) that has the following absorption peaks in mass spectrum (m/z73, 59,…

A: The question is based on concept of organic spectroscopy. we need to identify different fragments in…

Q: ¹H NMR Spectrum (200 MHz, CDCI, solution) 10 9 exchanges with D₂O 11.0 8 10.0 ppm 7 6 5 4 3 2 TMS 0

Q: substance of formula C5H9N has the infrared spectrum shown below. Deduce its structure

A: The structure would be:

Q: How many different phosphorus chemical environments are there for trans-[RhClCO(PPh3)2] and cis…

A: In trans isomers ,two similar groups are attached on the opposite sides and in case of cis…

Q: A solution of compound A in water exhibits an absorbance of 0.526 in a 1.000 cm cuvette at 473 nm…

A: Given that: absorbance of solution = 0.526 absorbance of water = 0.011 path length = 1.00 cm molar…

Q: What is the molar absorptivity of this absorption band.

A: We need to find the molar absorptivity of this absorption band. This is based on beer Lamberts law…

Q: (d) A solution of 4-methyl-3-penten-2-one in ethanol shows an absorbance of 0:52 at 236 nm in a cell…

Q: 3. (a) Both acetone and isopropanol are colour liquids. Beside using mass spectrometry, suggest one…

Q: Identify the structure and assign peaks and J values for an organic compound C4H30 with p-NMR…

Q: （i）Draw the geometry shape of (PH3) 2+ what is the rotor type of it? (ii) Is it IR active?…

A: Dipole moment: It occurs when there is s separation of charge. The larger the difference in…

Q: Barring any incidental overlap, what are the total number of signals expected in the ¹H and 1³C NMR…

A: Since you have asked a question with multiple sub-parts, we will solve the first three sub-parts for…

Q: A chemist is summoned to an abandoned waste-disposal site to determine the contents of a leaking,…

A: (a)

Q: N-H bonds in ammonia NH_3NH3 produce an IR absorbance at 3335 cm^-1. P-H bonds in phosphine…

A: Given IR absorbance of N-H bonds at 3335 cm-1 for NH3. IR absorbance of P-H bonds at 2327 cm-1 for…

Q: Ba 11 Meo. Heb H3C 10 A

Q: (c) 'H NMR spectrum; Iron and Chlorine are NMR inactive, 31P, I = ½ 100% abundant. PCI3 Cl.. ..H Fe…

A: Solution -

Q: What is the wavelength range for UV radiation? (b) Calculate the amount of drug present in a sample…

Q: Define the Mechanism- Addition of H and BH2—Hydroboration ?

A: Hydroboration oxidation reaction mechanism can be considered as an anti-Markonikov's reaction where…

Q: Avobenzone is used in sunscreens. A UV spectrum of a 3.0 mL sample of avobenzone (310.4 g/mol) in a…

A: The volume of avobenzene sample = 3.0 mLLength of the cell, l = 1.0 cmMolar exctinction coefficient…

Q: 10 The figure below shows the ¹¹B nmr spectra of THF.BH3 and (C6H5)(CH3)2P.BH3. Interpret the…

Q: (c) 'H NMR spectrum; Iron and Chlorine are NMR inactive, 31P, 1 = ½ 100% abundant. PCI, Cl Fe PCI,…

A: Solution -

Q: (a) Distinguish between two ionisation isomers of [Co(NH3)5 CI]SO 4 spectroscopy. by IR

A: Can be distinguish by IR stretching Frequency.

Q: (i) Dihedral potentials for ethane and biphenyl are shown below. 180 Dihedral angle / degrees 90 270…

A: The dihedral potential is given by , VDA = Vn21+Cosn∅-∅° , where, VDA = Dihedral potential…

Q: (b) An organic compound (A), having MF C,H120 reduces Fehling solution and Tollens reagent. The…

A: Compound A reduces the Tollens reagent. Therefore the compound is aldehyde ( see the fragmentation…

Q: Identify the structure and assign peaks and J values for an organic compound C4H3O with p-NMR…

A: the solution is as follows:

Q: 3D2: Recognize and inter Tour shift (8) in the determination of organic structure. (a) Complete the…

Q: An experiment involving the reaction between ammonium hydroxide and Cu2+ ions in aqueous solution…

A: In this investigation, understudies add alkali to an answer of copper(II) sulfate, notice the…

Q: (ü) The -OH proton resonance is found at 85-80 ppm for phenol (in dil. CDC13) and at d 10-67 ppm for…

A: NMR chemical shift values are effected by adjacent electron withdrawing groups and electron donating…

Q: (e) Sketch "P-NMR spectrum of HPF, (at -20°C) considering Jp.F > Jp.H and explain.

A: here we are required to sketch the NMR spectrum of HPF2 at -200C

Q: An organic compound can have one of the following structures: The Amar of the ethanolic solution is…

Q: The partial ¹H NMR spectrum for ester A is as below. 9 На H₂ O Ha CO OCH 3 C 5

A: The objective of this question is to explain the splitting formed in three different atoms. The nmr…

Q: whenanalysing using UV-Vis , a compound absorbs light at lamda max270nm . identify the compound and…

A: When a beam of light falls on any matter then electron absorbs the light and goes from lower energy…

Q: Use the 1H NMR and IR spectra given below to identify the structure ofcompound B (molecular formula…

Concept explainers

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.

Question

Alizarin (structure shown below) is a red dye used for
dyeing textile fabrics. Its extinction coefficient (I is
4895 M'xcm' at a of 430 nm. Calculate the
concentration of alizarin in aqueous solution (measured
in a cell of pathlength 0.1 cm) if the absorbance value at
430 nm is 0.5.
(a)
он

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

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 1 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

(give detail explanation)
31P (¹H) NMR Predict the 31P(¹H) NMR spectrum for Ph,PBH, and explain your answer. (For ¹¹B, spin number 1 = 3/2)
Which of the following compounds can have a broad absorbance band near 3300 cm-1 and 1650 cm-1?
(asap plz
The IR spectrum below is consistant with which of the following molecules? Transmitance A B C Ꭰ 0.8 0.6- 0.4 0.2 H 3000 INFRARED SPECTRUM 2000 Wavenumber (cm-1) OH OH 1000 OH D A B
( dont answer after 11.05 am asap
A sample in a1-cm cuvette gives an absorbance reading of 0.558. If the absorptivity for this sample is 15,000 L mol-1 cm-1, what is the molar concentration?
At 400 nm, FeSCN²+ has a molar absorptivity, &, of 3150 cm ¹ M-1. What is the absorbance of a 3.3 x10-4 M solution FeSCN2+ in a cell with a 0.250 cm pathlength at 400 nm?
Identify the structure and assign peaks and J values for an organic compound C4H30 with p-NMR (CDCI3, 400 MHz, 300 K) values at 8=1.01 (t), 1.56 (m), 2.47 (m), 3JHH 2.73 (m), 2.88 (m). =2.7 Hz, 3JHH =4.0 Hz.
label IR peaks and draw the structure of the compound and explain reasoning for the structure
(a) (b) The quantum yield of fluorescence for anthracene is seen to be higher than that of biphenyl. Draw the two compounds and explain why this is so. The UV spectrum of isoquinoline has four 2 max values at 318, 305, 266 and 218 nm. Draw the compound and suggest what you would expect to happen if acid was added to solution and the spectrum is retaken.
A 9.37×10° M aqueous solution of drug Z shows an absorbance (A) of 1.18 (at 350nm in a 10mm cell). Which ONE of the following is the correct concentration of another sample of Z which has an absorbance of 0.96 (at the same wavelength)? Assume the Beer – Lambert law is applicable. 1.6 x 10° M -5 А. 4.6 x 10° M -5 В. 7.6 × 10° M 9.6 x 10° M 4 x 10-10 С. D. Е. M