3. Ferulic acid is a phenolic compound present in popcorn, bamboo shoots, and cereals. Provide reasons for its effectiveness as a sunscreen. CO,H HO ÓCH, ferulic acid 4. Predict the UV maxima for the following substances. a. b. CH CH d. е.

3. Ferulic acid is a phenolic compound present in popcorn, bamboo shoots, and cereals. Provide reasons for its effectiveness as a sunscreen. CO,H HO ÓCH, ferulic acid 4. Predict the UV maxima for the following substances. a. b. CH CH d. е.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter25: Instruments For Optical Spectrometry

Section: Chapter Questions

Problem 25.4QAP

See similar textbooks

Related questions

Q: 2.What mass in grams of silver nitrate must be dissolved to prepare 5.00X102ML of 0.150M AGNO3 (MM…

A: Given: Volume of AgNO3 solution = 5.00×102 mL Molarity of AgNO3 solution = 0.150 M Molar mass of…

Q: In the reaction below, the Lewis base is BeCl2+2Cl^- BeCl4^2- A BeCk2 BBeCl4^2- C Cl D None of these…

A: Acceptor of electron pair is known as Lewis acid and Donar of electron pair is known as Lewis base.

Q: • Draw the Lewis Structure dot for Butanoic acid, CH3CH2CH2COOH and answer the following questions…

A: Lewis dot structure showing the arrangement of electrons in the molecule. The electrons are shown by…

Q: How many electrons are gaining or losing in this half-reaction? (write complete half reaction in a…

Q: 1) H,O* `CH3 2) CH3I g) 1) МСРВА NalO, H,C. CCH2 2) Na"SCH, h)

A: g) Grignard reaction with ketones result tertiary alcohols followed sn2 reaction. Ketal is…

Q: When a system is a dynamic equilibrium, A no reactions are occurring B a reaction is occurring in…

Q: mole fraction of argon?

Q: Chemistry Calculate [Cu2+]eq using Nernst Equation E cell: 0.48 Temperature: 25.0 C n=2

A: EoCu²+/Cu : 0.337 V Given, Ecell : 0.48 V Temperature : 25 oC = 298K n = 2

Q: Hailey bought one TI30XIIS calculator and two packs of grid paper for Mrs. Smith's math class. She…

A: Given, Hailey bought one calculator and two pack of grid paper by $ 17.25 and Larry bought two…

Q: Which of the following is capable of producing longer alkyne products? a Internal alkyne with…

A: We have to tell among the given options, which one is capable of producing longer chain alkyne…

Q: What type of intermolecular force causes the dissolution of RbBr in water? O dispersion forces O…

Q: Problem: CO2 gas occupies a volume of 20.0 L at STP. How many moles and How many molecules are…

A: According to the ideal gas equation, the volume of a gas depends on the temperature, pressure, and…

Q: ОН Na2Cr207 H2SO4, H2O

Q: Combined Gas Law 13)a) A sample of neon gas occupies a volume of 1.00L at 27.00C and 0.660 atm. What…

Q: If the concentration of H3O^+ is 1.0x10^-13, the pH is?

Q: Which element will have five electrons in its Lewis symbol? O carbon O sulfur O phosphorus O boron

A: Lewis symbol: Lewis symbol diagram is constructed by Putting dots around the element these dot…

Q: Calculate AH for the reaction using the given bond dissociation energies. CH, (g) + 20,(g) - -…

A: Given- CH4(g)+2O2(g)->CO2(g)+2H2O(g) ∆H°=?

Q: A chemist titrates 60.0 mL of a 0.5980M hypochlorous acid (HCIO) solution with 0.6753M NAOH solution…

A: At equivalance point , both acid and base neutralize each other to give conjugate salt . So moles…

Q: с. H2N° HO, SOCI2 (еxcess) N-CH3 CH3

A: Detail mechanistic pathway is given below to find out the final product

Q: Calculate the pH of a solution after 47.0 mL of 0.500 M NaOH is titrated with 53.0 mL of 0.250 M of…

Q: 50 cm3 of 0.05 M weak acid solution is titrated with 0.1 M NaOH solution. The measured pH values are…

A: Hii there, As there are multiple question posted. we are answering first question. If you need…

Q: [H2] = 0.095 mol/L, [CO] = 0.035 mol/L, [CH3OH] = 0.065 mol/L. What is the value of the equilibrium…

A: Given :- 2H2(g) + CO(g) <---> CH3OH(g) [H2] = 0.095 mol/L [CO] = 0.035 mol/L [CH3OH] = 0.065…

Q: Be sure to answer all parts. If 2.20 g of CuSO, is dissolved in 9.83 × 102 mL of 0.330 M NH3,…

Q: what is molarity, the average molarity, and standard deviation? igmsa H Titrations - Report Sheet…

Q: 7) Draw both the condensed and line bond structures for A) 1,3,3-trimethyl cyclohexene B)…

Q: 1) NBS 2) DMSO. H,0 он 1) NaH CH,CH, 2) CH,CH,

A: All these given reactions involves alkenes, alcohol and ether as starting materials. The…

Q: CHEMWORK Choose the statements that are correct. (Select all that apply.) In a galvanic cell the…

Q: In the mass spectrum the highest peak is known as the base peak is also considered as the parent…

A: Choose the statement is true or false --

Q: make sure reagents are CLEAR write out the mechanism. make sure to include resonance, reagents,…

A: Friedel-Craft alkylation is the importnat reaction for the introduction of alkyl group on the…

Q: UV, IR, and MS (Interpretation of Structure) 1.) Predict the structure of the two unknown…

A: 1. Odd mass, odd no of nitrogens present. Therefore one nitrogen present. Therefore the compound…

Q: 42. HNO, + NH,C 43. HNO, KCIO, 44. HNO, + NaNO,

Q: Question 3 how do you call the analysis technique done by identifying the fragments corresponding to…

A: Mass spectrometry is the branch of chemistry in which we deal with deal with molecular ions,…

Q: Determine E°, AGʻ, and K for the overall reaction from the balanced half-reactions and their…

Q: Calculate the pH of a carbonate buffer system that contains 0.0065 M HCO, and 0.0084 M CO,. The K,…

A: Given, Concentration of weak acid, HCO3- = [HCO3-] = 0.0065 M Concentration of conjugate base,…

Q: A diprotic acid, H, A, has acid dissociation constants of K = 2.32 x 10-4 and K2 = 5.84 x 10-12.…

Q: Balance the following Chemical Reactions: CH:CH 0:- CO:+ H.O+ Cl CoT O2=> CO2H H2O+ H2O+ CO2=…

A: Balanced the given above reaction---

Q: 21. Which substance will lower the melting point of ice the most? a. NaCI b. KNO3 c. Ca Cl2 d. KBr

A: formula to calculate the depression in the freezing point is delta T = i Kf m here i is the van't…

Q: A Moving to another question will save this response. Question 21 If n = 2, what value cannot mĮ…

Q: Once an antiviral agent has been found, scientists go about trying to determine the formula of this…

A: Two important factors that can limit the utility of antiviral drugs are toxicity and the development…

Q: Calculate the change in pH that occurs when 0.550 mmol of a strong acid is added to 100 mL of 0.0210…

Q: activity

Q: 0.250 mol of N2 is placed into a 0.750 L container. What is the density of the gas? 84.1 g/L 4.67…

Q: Acetylene is a gas used for welding metal. a. Write the balanced combustion reaction for acetylene,…

Q: Find the threshold frequency of the magnisium metal using given information below. The binding…

A: When a photon of electromagnetic radiation with sufficient energy falls on the surface of the metal,…

Q: A 3D representation of a cyclohexane (C,H,2) molecule, a cyclic compound used in the manufacture of…

A: The hybridization and geometry of each carbon in cyclohexane is given below

Q: 1o A 5 cm sample of 0.05 mol dm3 sodium chloride is mixed with a 5 cm3 sample of 0.05moldm potassium…

Q: 8 The illustration to the left represents a mixture of phosphorus ( orange ) and fluorine ( green )…

A: Answer: Limiting reagent is that reactant which exhaust first in chemical reaction and decides the…

Q: How many atoms of hydrogen are in 132g of (NH4)HPO4

Q: TRUE or FALSE. All electron-withdrawing substituents of benzene will tend to direct subsequent…

A: Given reaction is aromatic electrophilic substitution reaction.

Q: Given is teh mass spectogram of an unknown compoound. This unstable cyclic compund is a colorless…

A: Note : The compound name is cyclohexene. (See below).

Question

Chemistry
3. Ferulic acid is a phenolic compound present
in popcorn, bamboo shoots, and cereals.
Provide reasons for its effectiveness as a
sunscreen.
CO,H
но
ÓCH,
ferulic acid
4. Predict the UV maxima for the following substances.
a.
b.
CH3
C.
d.
е.

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 5 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

Explain how to obtain larger particles based on the relative supersaturation
A mixture of mercurous chloride (FW 472.09) and mercurous bromide (FW 560.99) weighs 2.00 g. The mixture is quantitatively reduced to mercury metal (At wt 200.59) which weighs 1.50 g. Calculate the % mercurous chloride and mercurous bromide in the original mixture.
Plz do Asap....! Ignore marked options and give proper answers with proper explanation....!
When the D line of sodium light impinges an air-diamond interface at an angle of incidence of 25.0°, the angle of refraction is 10.1°. What is nD for diamond? (Skoog 144) Skoog, Douglas A., F. Holler, Stanley Crouch. Principles of Instrumental Analysis, 7th Edition. Cengage Learning, 20170101. VitalBook file. The citation provided is a guideline. Please check each citation for accuracy before use.
Explain the difference between absorption and adsorption in natural dyes. Use sketches to clarify your explanation.
1) How does IR radiation affect absorbing molecules? Name an example molecule that does not absorb IR and briefly explain why. 2) Suppose you are able to figure out, correctly, all of the functional groups for an unknown organic molecule using FTIR. Explain why this might not be sufficient to pin down the exact structure of the molecule. What additional information could be useful? 3) Explain the basic operating principle of an ATR based sampling system? Give the advantages of an ATR-based sampling system compared to one based on direct transmittance of IR radiation in terms of sample thickness and preparation techniques?
a) What is solid state sintering? How is solid state sintering classified. What are the distinct features of each stage. Briefly explain your answer.b) What are the two main differences between solid state sintering and liquid phase sintering.
Give 3 other applications of the Goldennumber found in Nature
CIE standardized instruments of the geometry of 45。 / 0。and d/8。are widely applied for colour analysis of food samples. (a.) With the aid of diagrams, explain how the measurement is achieved using these two geometries. (b.) Which of the geometries is more preferred in a colour analysis of food samples? Explain your answer briefly.
What are the limitations to use UV-vis for quantitative analysis? What experimental requirements must be met to use this technique? What other instruments, if any, can this technique of quantitative analysis be performed on? Remember this technique utilizes Beer’s law.
A 20.0 mL sample was analyzed using the Mohr method. Calculate the percent (w/v) Br- (FM = 79.90) if 25.00 mL of 0.1234 M AgNO3 was used to form the yellow-orange endpoint. Group of answer choices 80.9% 4.93% 12.3% 1.23%
Chemistry Estimation of Rhodamine B in Wastewater-UV-VIS Spectrophotometry