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1 | P a g e C o p y r i g h t © 2 0 2 5 T H E B R I G H T A L L R I G H T S R E S E R V E D CHEM 238 FINAL EXAM 2025 QUESTIONS AND ANSWERS In IR spectra, each functional group has different ______ & ______ modes which lead to _________ - ANS bonding; stretching; difference absorbance what must change in order for vibration to show in IR spectra? - ANS dipole of molecule where is the fingerprint region located? - ANS 1400-400 nm where are benzene, hydroxyl, and carbonyl groups found in IR...

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10 pages

Written in 2024/2025

Grade A+

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Chem 238 Test Paper 2025/2026 Questions And Solutions Marked A+

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Chem 238 Evaluation Exam 2025/2026 Questions And Solutions Marked A+

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Chem 238 Comprehenive Exam 2025/2026 Questions And Solutions Marked A+

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6 pages

Written in 2024/2025

Grade A+

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CHEM 238 Bundled Exams 1-4 and Final Exam Solved 100%

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5 items

TutorJosh

CHEM 238 Exam 4 Questions Fully Solved Latest Update 2025 Graded A+ What are acyl halides and how do you name them? - Answers carboxylic acid derivatives where the -OH is replaced by a halide named by replacing the previous -ic acid or -oic acid with the -oyl suffix, or by replacing the -carboxylic acid with -carbonyl, and then adding chloride or bromide, depending on the halide ex: acetyl chloride What are the 8 exceptions for an acyl halide where a -yl suffix is used rather than the -o...

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9 pages

Written in 2024/2025

Grade A+

TutorJosh

CHEM 238 Exam 3 Questions with Verified Answers Latest Version 2025 Graded A+ Properties of ethers - Answers good solvents low BPs water soluble crown ethers bind to metals Way to make ethers from primary alcohols - Answers SN2 - need a primary alkyl leaving group heat with acid How to make symmetrical ethers from primary alcohol - Answers SN2 or heat w/ acid and ADD another primary alcohol Reactivity of ethers - Answers unreactive --> good solvents What kind of bases/nucleophiles ar...

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4 pages

Written in 2024/2025

Grade A+

TutorJosh

CHEM 238 Exam 1 Questions with Verified Answers Latest Version 2025 Graded A+ Stretches > 3000 cm-1 - Answers Unsaturated, sp2 C-H stretches (double bonds) Stretches < 3000 cm-1 - Answers saturated, sp3 C-H stretches (single bonds) Both above/below 3000 cm-1 - Answers sp2 and sp3 C-H stretches (could be aromatic) Overtone bands - Answers Small, round peaks around cm-1, aromatic compounds 1700 cm-1 - Answers C=O carbonyl stretch (ketones, aldehydes, esters, etc.) The range is cm-1. ...

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4 pages

Written in 2024/2025

Grade A+

TutorJosh

CHEM 238 Exam 2 Questions and Answers Solved Correctly Latest Update 2025 IR - Answers Uses IR light to show strength of the bond IR graph - Answers X: wavenumber (cm-1) (larger the number the larger the energy absorbed) Y: percent transmittance (larger more absorbance) IR trends - Answers Weight increases, wavenumber decreases Bond strength increases, wavenumber increases Number of bonds increases, peak size increases Bond polarity increases, peak size increases Fingerprint region...

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3 pages

Written in 2024/2025

Grade A+

TutorJosh

Tamu exams Compilation { biology, chemistry engineering, Microbiology,History, Accounting, Pols 206 } With Verified solutions A+ Graded Tamu exams Compilation { biology, chemistry engineering, Microbiology,History, Accounting, Pols 206 } With Verified solutions A+ Graded

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45 items

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1. Reaction of ethyl magnesium bromide with water will generate? a. ethanol b. ethane c. butane d. ethyl magnesium hydroxide e. a peroxide - b 2. Under conditions of thermodynamic control, product distribution is governed by: a. the relative stabilities of the products b. the relative energies of the transition states leading to the products c. the rate at which each product is formed d. a and b e. b and c - a 3. Which of the following statements is false for the reduction of camphor...

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25 pages

Written in 2023/2024

Grade A+

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Chem_mark_2020_2H (1

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19 pages

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Grade A+

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20 pages

Written in 2021/2022

Grade A

MBOFFIN

This applies to questions requiring a set number of responses, but for which students have provided extra responses. The general principle to be followed in such a situation is that ‘right + wrong = wrong’. Each error / contradiction negates each correct response. So, if the number of error / contradictions equals or exceeds the number of marks available for the question, no marks can be awarded. However, responses considered to be neutral (indicated as * in example 1) are not penalise...

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19 pages

Written in 2020/2021

Grade A+

QuickA

This applies to questions requiring a set number of responses, but for which students have provided extra responses. The general principle to be followed in such a situation is that ‘right + wrong = wrong’. Each error / contradiction negates each correct response. So, if the number of error / contradictions equals or exceeds the number of marks available for the question, no marks can be awarded. However, responses considered to be neutral (indicated as * in example 1) are not penalise...

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20 pages

Written in 2020/2021

Grade A+

QuickA