MasteriigChernitry: Chapte 11 Homework Secure l https://s Google Chrome Vvew?ass
ID: 592930 • Letter: M
Question
MasteriigChernitry: Chapte 11 Homework Secure l https://s Google Chrome Vvew?assignmentPro 88982147 Probiem 11 31 previous 4 of 10 nest MyLabsPlus Problem 11.31 Wite the equation dissociation for arsenic acid Express your answer as a chemical equation. Identify all of the phases in your answer. O My Courses Arsenic add dissociates to form dinydrogen arsenate and hydronium ion Arsenic acid has K Course Home Assgnments of5.5 x 1o3 Scores eText 2.0 My Answers Give lUp Iser Settings Part B whatthe expression consant dissociation for arsenic acid? 20 HaAsoil Lsb1 Subenit My Aiswers Ghee ll 12/1/2017 ipExplanation / Answer
A)
arsenic acid will dissociate to give H+ and H2AsO4-
H3AsO4 --> H+ + H2AsO4-
B)
Ka = (concentration of reactant)/(concentration of product)
so,
Ka = ([H+]*[H2AsO4-])/[H3AsO4]