What is the pka - Study guides, Class notes & Summaries

If the pka of a weak acid is 2.5, at which pH will this drug become more ionized? A. pH 5 B. pH 2.5 C. pH 1.5 D. pH 1 - Answer - A. For a weak acid, a higher pH increases ionization Which equation describes the rate of drug dissolution from a tablet? A. Fick's Law B. Henderson-Hasselbalch equation C. Michaelis-Menten equation D. Noyes-Whitney equation - Answer - D. The Noyes-Whitney equation describes the rate of drug dissolution from a tablet. Fick's first law of diffusion is s...

Properties of Calcium phosphate antibiotic beads non exothermic Must use powder Peaks at 3 hours and then elutes over 72 hours 120 day shelf life Most common 5th metatarsal fracture Avulsion fracture (about 50% of 5th met fractures) normal IM between 4 and 5? normal lateral bowing angle? IM= 6.5-9.0 bowing angle=2.6 What is the Myerson procedure? use of EHB in correction of HAV. What is biologic fixation? stewart classification 5th met base fracture benefit of ropivicaine over bupivain...

Typical Van der Waals energies are about: correct answers 2-4 kJ/mol A possible drug to treat COVID-19 has been discovered and is known to be a weak acid. At the pH of blood (7.4) the concentrations of acid and conjugate base are 0.075 and 0.025 respectively. What is its pKa? correct answers 3.00 What is the [A-]/[HA] ratio whent he weak acid is in solution alone pH unit above its pKa? correct answers 10:1 What are the primary chemical components present in a phosphate buffer at pH 7.4?...

Acids and bases are usually demoted as strong or weak, what's the difference? - Answer-- Strong acids and bases - reaction with water is approximately 100% - Weak acids and bases - reaction with water is much less than 100% What does acid and base strength not dictate? - Answer-Acid or base strength is not a measure of concentration What are some examples of strong acids? - Answer-HNO3, HCl, H2SO4 and HClO4 are strong acids What are electrolytes and what's the connection to acids? - Ans...

What form of bromo blue was soluble in the organic layer? a. Acidic b. Basic c. Both d. Neither - correct answers acidic bc its neutral What form of bromo blue was soluble in the aqueous layer? a. Acidic b. Basic c. Both d. Neither - correct answers basic bc it has charge on it and the aq layer in lab was polar and the basic layer was also polar when looking at the full spectra of the promo blue ranging from ph 5 to 10, the absorbance values converge. What is this point called?...

ABFAS boards (Rear foot and forefoot) Questions and Answers Rated A+ Properties of Calcium phosphate antibiotic beads non exothermic Must use powder Peaks at 3 hours and then elutes over 72 hours 120 day shelf life Most common 5th metatarsal fracture Avulsion fracture (about 50% of 5th met fractures) normal IM between 4 and 5? normal lateral bowing angle? IM= 6.5-9.0 bowing angle=2.6 What is the Myerson procedure? use of EHB in correction of HAV. What is biologic fixation?...

What data transfers from a PKA to TKA conversion?  Patient name + ID + Operative Side  Screen captures  CT data  Segmentation  CT landmarks What happen to surgeon preferences from a PKA to TKA conversion?  They become default What happens to CT landmarks new to 2.0 in a pka to tka conversion?  they are left blank When the segmentation is transferred from a pka to tka is it able to be edited?  if originally planned in the sagital plane then yes if orginially pl...

CHEM 129 EXAM 3 Questions With 100% Correct Answers Acids and bases are usually demoted as strong or weak, what's the difference? - answer- Strong acids and bases - reaction with water is approximately 100% - Weak acids and bases - reaction with water is much less than 100% What does acid and base strength not dictate? - answerAcid or base strength is not a measure of concentration What are some examples of strong acids? - answerHNO3, HCl, H2SO4 and HClO4 are strong acids What are ele...

What is a major safety concern for the griganrd lab - correct answers Et2O flammability What are two features of a good solvent - correct answers soluble at high temps, doesn't react with compound being purified Mixtures of two compounds will lead to what type of MP - correct answers lower and braoder ___________ solvents will dissolve the substance when hot, but not when cold - correct answers crystalization What leads to larger, purer crystals - correct answers slow cooling How...

Biochemistry and Metabolism Exam 1 Questions with Complete Solutions. What are proteins made from? -Answer- amino acids What are some functions of proteins? (5) -Answer- structural, enzymatic, transport, defense, contractile Which isomer of carbohydrates is used in animals? -Answer- D What are DNA and RNA made of? -Answer- nucleic acids All lipids are formed from... -Answer- acetyl Co-A Complex lipids -Answer- phospholipids and glycolipids Simple lipids -Answer- triglycerides functions ...