Pka - Study guides, Class notes & Summaries

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PKA 101 Quiz | Questions with 100% Correct Answers | Latest Update 2024 | Verified

Given the pKa's of several polyprotic acids choose the strongest acid among the ions given below. H3PO4: pKa1=2.16, pKa2=7.19, pKa3=12.32 H3AsO4: pKa1=2.26, pKa2=6.77, pKa3=11.29 H2SO3: pKa1=1.77, pKa2=7.21 H2CO3: pKa1=6.37, pKa2=10.33 > HCO3- > H2AsO4- > H2PO4- > HPO42- > HSO3- - Ans: H2AsO4- Which of the following is the weakest base? > (CH3CH2)2NH (pKb = 3.07) > NH2OH (pKb = 7.97) > (CH3CH2)3N (pKb = 3.25) > CH3CH2NH2 (pKb = 3.25) > (CH3)3N (p...

Henderson-Hasselbalch Equation Correct Answer-pH = pka + log([un]/[pro]) higher pka = higher affinity for H+ pH > pka, H+ is predominantly off pH < pka, H+ is predominantly on Ionizable Groups Correct Answer-Terminal Carboxyl Terminal Amino Acidic AA (ASP and GLU) Basic AA (HIS, CYS, LYS, TYR, and ARG) Aliphatic AA Correct Answer-Carbon based: "Guys! Alissa Values Likes on Instagram1" GLY, ALA, VAL LEU, ILE Aromatic AA Correct Answer-Form rings: "Pheobe is Tyred o...

NBME PHYSIOLOGY UPDATED EXAM WITH COMPLETE SOLUTIONS 2023/2024 Prostglandin - CORRECT ANSWER-From mast cells, macrophages, EC, and platelets Vasodilation, pain Rate controlling step in Insulin secretion - CORRECT ANSWER-Phosphorylation of glucose by glucokinase Glucokinase mutation - CORRECT ANSWER-Autosomal dominant form of early onset type 2 diabetes GLUT 2 - CORRECT ANSWER-low affinity high capacity glucose transporter. Uptake by beta cells Insulin release - CORRECT ANSWER-Bloo...

BioChem 210 Module 2 Exam - Portage Learning 1. The pH of a solution of 0.0010 M NaOH is:: 11 (Kw=[H+][OH-] = 1.0 x 10-14; [H+][0.0010] = 1.0 x 10-14 [H+]=1.0 x 10-11; pH=-log[1.0 x 10- 11]=11) 2. Water is a unique molecule. Which of the following contributes to water's unique place in the chemical world?: All of the answers are correct 3. The bent shape of water is due to ______________.: The unshared electron pairs on the oxygen atom 4. Which diagrams correctly represent ...

Biochemistry I Rutgers Exam 1 Questions And Answers Rated A+ Which will show the greater degree of dissociation: formic acid (pKa = 3.75) or acetic acid (pKa = 4.76) if dissolved in water at 0.1 M concentrations? A. Formic acid C. Within the accuracy of measurement, they will be equally dissociated. B. Acetic acid D. Cannot tell from data given. ANS A. Formic acid Which will show the greater degree of dissociation: formic acid (pKa = 3.75) or acetic acid (pKa = 4.76) if dissolved at 0.1 M...

CHEM 210 Exam 1 Review 2024 With Questions And Answers - Portage Learning. What is a BL acid? BL base? - Answer Acid is a proton donor while a base is proton acceptor List the 6 strong acids - Answer HClO4, HCl, HBr, HI, HNO3, H2SO4 List the 6 strong bases - Answer LiOH, NaOH, KOH, Ca(OH)2, Sr(OH)2, Ba(OH)2 What is the eq. for the dissociation of a weak acid? - Answer HA <=> H+ + AKa = ([H+][A-])/[HA] What is the eq. for base hydrolysis? - Answer B + H2O <=> BH+ + OHKb = ([BH+]...

Exam 1: NURS 615/ NURS615 (Latest 2024/ 2025 Update) Advanced Pharmacotherapeutics Complete Review |Qs & As| 100% Correct| Grade A (Verified Answers) Q: What factors affect the 1. Rate of absorption or how fast 2. Extent of absorption or how much of med reaches blood stream. Answer: 1. pH of the environment where absorption takes place. 2. Surface area available (small intestine) 3. Blood supply to absorption site 4. Presence of food, or other materials in GI ( can promote or inh...

What occurs when CO2 enters the blood? Hint, see this link (it might be slow to respond). But the problem can be answered based on lecture notes and deductive reasoning [HCO3-] increases the pH of the blood increases the pKa of the blood decreases [H3O+] in the blood decreases Correct Answer-[HCO3-] increases If a water solution has a [OH-] concentration of 1 X 10-9, the pH would likely be: 6 4 7 5 8 Correct Answer-5