Percent ionization can be used to quantify the extent of ionization of an acid in solution and is defined by the followi
Posted: Thu Jun 30, 2022 6:20 pm
Percent ionization can be used to quantify the extent of ionization of an acid in solution and is defined by the following formula for the acid HA: Percent ionization = [HA] ionized [HA] initial 100% Percent ionization increases with increasing Ka. Strong acids, for which Ka is very large, ionize completely (100%). For weak acids, the percent ionization changes with concentration. The more diluted the acid is, the greater percent ionization. A convenient way to keep track of changing concentrations is through what is often called an I.C.E table, where I stands for "Initial Concentration," C stands for "Change," and E stands for "Equilibrium Concentration." To create such a table, write the concentrations of reactant(s) and product(s) across the top, creating the columns, and write the rows I.C.E on the left-hand side. Such a table is shown below for the reaction: A + B = AB Initial (M) Change (M) Equilibrium (M) [A] [AB] A certain weak acid, HA, has a Ka value of 6.9x10-7. Part A Calculate the percent ionization of HA in a 0.10 M solution. Express your answer to two significant figures and include the appropriate uni ▸ View Available Hint(s) Template Symbols undo redo reset keyboard shortcuts help, ` 0.19 % Submit Previous Answers x Incorrect; Try Again Part B Calculate the percent ionization of HA in a 0.010 M solution. Express your answer to two significant figures, and include the appropriate un ▸ View Available Hint(s) Templates Symbols undo redo reset keyboard shortcuts help 0.61 % Submit Previous Answers x Incorrect; Try Again