The compound p - methylthiophenol more or less reactive in electrophilic aromatic substitution than phenol is to be identified. Concept introduction: The electron withdrawing or electron releasing groups have a significant role in the activation and deactivation of benzene rings during an electrophilic aromatic substitution reaction. An electron withdrawing group deactivates the benzene rings by reducing the electron density on the rings.The electrophilic groups tend to accept or withdraw the electrons from the rest of the compound.The deactivating groups are those groups that tend to withdraw the electron density from the benzene ring and decrease the overall rate of reactions.

Question

3) The following molecule, chloral is a common precursor to chloral hydrate, an acetal type molecule that was a first-generation anesthetic. Draw a mechanism that accounts for tis formation and speculate why it does not require the use of an acid catalyst, like most hemiacetal and acetal reaction: (10 pts) H H₂O

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Chapter 19, Problem 19.45P

Interpretation Introduction

Interpretation: The compound p- methylthiophenol more or less reactive in electrophilic aromatic substitution than phenol is to be identified.

Concept introduction: The electron withdrawing or electron releasing groups have a significant role in the activation and deactivation of benzene rings during an electrophilic aromatic substitution reaction. An electron withdrawing group deactivates the benzene rings by reducing the electron density on the rings.The electrophilic groups tend to accept or withdraw the electrons from the rest of the compound.The deactivating groups are those groups that tend to withdraw the electron density from the benzene ring and decrease the overall rate of reactions.

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3) The following molecule, chloral is a common precursor to chloral hydrate, an acetal type molecule that was a first-generation anesthetic. Draw a mechanism that accounts for tis formation and speculate why it does not require the use of an acid catalyst, like most hemiacetal and acetal reaction: (10 pts) H H₂O

You are a Quality Manager for a very well-known food ingredient company that produces umami powder, and you are responsible for setting specification limits. The net weight (in grams) of bags of unami powder is monitored by taking samples of six bags on an hourly basis during production. The label on every bag reports a contents of 1KG umami powder. The process mean is μ = 1012 g, and when the process is properly adjusted, it varies with σ = 11 g. QUESTION: Your organisation strives to ensure that >99.97% of bags of umami powder produced conforms to specification. What performance process index value is required to achieve this process yield? Calculate PPK using the following formula: Ppk = (USL – mean)/3 σ Ppk = (mean -LSL)/ 3 σ

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