ANES 501 Acids, Bases & Buffers 2025: 18 Q&A with Step-by-Step Rationales, Henderson-Hasselbalch Calculations, and Metabolic Acidosis/Alkalosis Management

equilibrium

exists in a system of at least 2 states, when the populations of two states are constant

state

chemical equilibrium: members of the system may be changes from one _______ to another

concentration

chemical equilibrium: the _______ of members of the system remains constant in each state

Le Chatelier's Principle

systems strive to re-establish the state or equilibrium:if you add more reactant, the system responds by making more product and vice versa

products

Le Chatelier's: adding reactants shifts the equilibrium towards ?

reactants

Le Chatelier's: adding products shifts the equilibrium towards ?

volume, pressure

Le Chatelier's: changing what two factors also alters the state of equilibrium (other than product/reactant concentration)

increases

increasing FiO2 _____ the dissolved amount of oxygen

Le Chatelier

what is this an example of: in the alveoli, oxygen tension is high and this favors the movement of oxygen on the hemoglobin molecule

the lower oxygen concentration in the tissue favors the movement of oxygen off of the hemoglobin molecule

D^d x C^c/A^a x B^b

equilibrium constant equation

K

equilibrium constant: numerical description of the balance of reactants and products in molar concentrations

weak acids

Ka: governs the ionization of ?

subscript

equilibrium constant: denotes the type of equilibrium

products

as K increases, the equilibrium established favors the _______

product

if K > 1, the reaction is ______ favored and more_______ is present

acid

species that increases H+ concentration

H3O (hydronium)

in aqueous solution H+ will exist as ______

base

species that increases the hydroxide ion in an aqueous solution