Deltag - Guides d'étude, Notes de cours & Résumés

Fumaric acid has two conjugate base forms, with pKa1=3.02 and pKa2=4.48, at what pH value αHA- got its largest fractions? a. 3.02 b. 4.48 c. 3.75 d. 5.41 c. 3.75 For a diprotic system, the equation for the fraction of A2-(αA2-) is a. αA2- = K1K2/([H+]2+[H+]K1+K1K2) b. αA2- = [H+]2/([H+]2+[H+]K1+K1K2) c. αA2- = K1K2/([H+]+[H+]K1+K1K2) d. αA2- = [H+]2/([H+]+[H+]K1+K1K2) a. αA2- = K1K2/([H+]2+[H+]K1+K1K2) A 25.00mL solution of 0.0316M benzylamine was titratd with 0.02...

What is the smallest unit that we recognize as "being alive"? - ANSWER cell Which of the following structures is only associated with eukaryotic cells? SELECT ALL THAT APPLY - ANSWER 1. Mitochondria and other organelles 2. Nucleus containing the DNA One general attribute that sets life apart from non-living matter - ANSWER Those that require the ability to pass on hereditary information -reproduction and growth -evolution Another general attribute that sets life apart from non-livi...

150 Biochemistry Exam 1 practice questions with correct answers. Rated A. 2022/2023 updates Document Content and Description Below What type of isomers are glucose and fructose? >>> structural isomers What type of isomers are glucose and galactose >>> stereoisomers What are the strongest intermolecular interactions between phen ylalanine and alanine? >>> hydrophobic What are the strongest intermolecular interactions between aspartate and lysine >>> ionic bon...

What type of isomers are glucose and fructose? >>> structural isomers What type of isomers are glucose and galactose >>> stereoisomers What are the strongest intermolecular interactions between phenylalanine and alanine? >>> hydrophobic What are the strongest intermolecular interactions between aspartate and lysine >>> ionic bond What are the strongest intermolecular interactions between serine and glutamine >>> hydrogen bond What are the stro...

150 Biochemistry Exam 1 practice questions with correct answers What type of isomers are glucose and fructose? >>> structural isomers What type of isomers are glucose and galactose >>> stereoisomers What are the strongest intermolecular interactions between phenylalanine and alanine? >>> hydrophobic What are the strongest intermolecular interactions between aspartate and lysine >>> ionic bond What are the strongest intermolecular interactions betwee...

Chem 104 Final Exam Elaborations cathode electrons are on - reactants side convert from regular hybrid to hybridization graph - delta s surroundings equals - negative delta h system/T Determining pH using Henderson-Hasselbalch Equation: - List the major species; determine which are acids/bases/spectator ions 2. Write out the important chemical reaction that has weak acid and conj. base 3. Find concentrations of weak acid and conj. base 4. Plug into Henderson-Hasse...

Bch 3025 Exam 3 Questions With Correct Answers If the G'° of the reaction A -> B is -40 kJ/mol, under standard conditions the reaction: A) is at equilibrium. B) will never reach equilibrium. C) will not occur spontaneously. D) will proceed at a rapid rate. E) will proceed spontaneously from left to right. - answerE) will proceed spontaneously from left to right. For the reaction A - B,G'° = -60 kJ/mol. The reaction is started with 10 mmol of A; no B is initially present. After 2...

BCH 3025 ACTUAL EXAM 1|BRAND NEW EXAM QUESTIONS AND CORRECT ANSWERS ALL GRADED A+|GUARANTEED SUCCESS What type of covalent bond is responsible for holding together the secondary structure of proteins? A) Disulfide bonds D) Ionicbonds B) Hydrogen bonds E) None of the above C) Amide bonds - ANSWER- what are the most abundant biological elements and what is their tier? - ANSWER-C, N, O, H, 1st tier what are the four types of unit molecules and what are the characterist...

Step 6 of Glycolysis - Answer-- glyceraldehyde-3-phosphate dehydrogenase uses NAD+ and Pi to oxidize and phosphorylate C1 of glyceraldhyde-3-phosphate to 1,3-bisphosphoglycerate - ATP is not used - NAD+ is reduced to NADH - positive deltaG - active site Cys residue is required Step 7 of Glycolysis - Answer-- phosphoglycerate kinase removes a phosphate group from C1 of 1,3-bisphosphoglycerate and adds it to ADP to make 3-phosphoglycerate and ATP - negative deltaG - helps pull step 6 forw...

Voltage Division Rule Current Division Rule Star and Delta networks to simplify complex circuits Star to Delta transformation and vice-versa