Ester formation - Study guides, Class notes & Summaries

EPA 608 Certification Exam Questions and answers Ozone depletion is caused by _ in HCFC refrigerants - ANSWERS Chlorine CFCs and HCFCs _ making them capable of reaching the stratospheric ozone - ANSWERS do not dissolve in water or easily break down in the atmosphere How many ozone molecules are destroyed by one chlorine atom - ANSWERS 100,000 ozone molecules The stratospheric ozone layer protects us from _ - ANSWERS ultraviolet radiation from the sun Which health effect increases fro...

EPA 608 Exam Practice Questions 1-100 with Complete Solution Ozone depletion is caused by _ in HCFC refrigerants - -Chlorine CFCs and HCFCs _ making them capable of reaching the stratospheric ozone - - do not dissolve in water or easily break down in the atmosphere How many ozone molecules are destroyed by one chlorine atom - -100,000 ozone molecules The stratospheric ozone layer protects us from _ - -ultraviolet radiation from the sun Which health effect increases from loss of the stra...

Describe passivation - ANSWER-Passivation is the formation of a protective oxide Film on the surface reducing its chemical activity and its ability to corrode Describe the following factors and how they affect corrosion - ANSWER-Oxygen: oxygen increases the rate of corrosion temperature Temperature: corrosion usually accelerated with increasing temperature Chemical salts: increase the rate of corrosion by increasing the efficiency of the electrolyte humidity: the wetter the environment,...

esthetic (structure/composition-wise) and there roles. - answer1) Lipophilic (to penetrate anatomic barrier) 2) Intermediate chain (amide or ester, distinguishes area of metabolism) 3) Hydrophilic (ensures that drug will not precipitate in interstitial fluid/space) T or F: Local anesthetics are weak acids with a pKa of 7.5-9.5) - answerFALSE, LA are weak BASES with a pKa of 7.5-9.5) what determines the Non-Ionized (basic) % of anesthetic? - answer1) Tissue pH determines % of un-ionized LA...

Chapter 1: Nucleic Acids and Proteins Multiple Choice 1. DNA contains deoxyribonucleotide triphosphates joined together by what type of covalent bond? A. Aldehyde B. Ester C. Phosphodiester D. Peptide ANS: C OBJ: 1-2 2. Nucleotides in DNA consist of which of the following? A. Nitrogen base, deoxyribose, and phosphate B. Nitrogen base, ribose, and sulfur C. Carbon base, ribose, and phosphate D. Carbon base, glucose, and carboxyl ANS: A OBJ: 1-1 3. Which of the five ribose carbons...

Pharmacologic behavior (AAPD QE Prep Dr. Nelson) Exam Questions With Verified Answers What was the chronology of anesthetic discovery (starting with cocaine till now)? - answer1) Cocaine (1885) 2) Procaine (1904) 3) Lidocaine (1943) 4) Articaine (2000) What Cranial nerve do we block most frequently in dentistry? what are its branches and functions? - answer1) Cranial Nerve (V); Trigeminal Nerve 2) 3 Branches: a) V1: Opthalmic branch b) V2: Maxillary branch (Superior alveolar, etc) c...

Pharmacologic behavior (AAPD QE Prep Dr. Nelson) Exam Questions With Verified Answers What was the chronology of anesthetic discovery (starting with cocaine till now)? - answer1) Cocaine (1885) 2) Procaine (1904) 3) Lidocaine (1943) 4) Articaine (2000) What Cranial nerve do we block most frequently in dentistry? what are its branches and functions? - answer1) Cranial Nerve (V); Trigeminal Nerve 2) 3 Branches: a) V1: Opthalmic branch b) V2: Maxillary branch (Superior alveolar, etc) c...

NU624 2nd Exam Practice Questions and Answers B. Haworth projections -Aldehydes react with alcohols to form hemiacetals, and ketones react with alcohols to form hemiketals—when this intramolecular reaction occurs, the linear monosaccharide forms a cyclic structure -The cyclic structures are called Haworth projections -Lower horizontal bond in the ring is projected toward you, above the plane of the page, and the upper horizontal bond is projected away from you, behind the plane of the ...

Electric Dipole Moment correct answers Neutral molecule with uneven charge distributions (partial charges) e.g. H2O Diffusion correct answers Movement of molecules from areas of high to low concentrations e.g. Volatile Perfume distributing through the air Osmosis correct answers Diffusion of WATER through a membrane e.g. Aquaporins (biological proteins) Hydrophilicity correct answers "Water Loving" e.g. Charged ions that interact with the Electric Dipole Moment in water. (Soluble) ...

Which of the following would you classify as a molecule? Cu Fe N S2F S2F Which of these subatomic particles is found outside of the nucleus of an atom? Nucleons Protons Neutrons Electrons electrons Which of the following would you classify as a cation? OH- K+ S2- FeO K+ If we cut a chunk of iron into smaller pieces, is it still iron no matter how small the pieces are? Yes, an atom of iron would be iron no matter how small the pieces became. A molecule ...