Consider the generic acid HA which has the reaction and equilibrium constant of. (9) x 2 + ( 2 10 9) x ( 4 10 10) = 0. Expert Answer . endobj 16 0 obj /FirstChar 32 Posted 11 months ago pH Get plagiarism-free solution within 48 hours, Submit your documents and get free Plagiarism report, Your solution is just a click away! /Length 17 0 R /Encoding /WinAnsiEncoding The site owner may have set restrictions that prevent you from accessing the site. Question: Using The Ka's For HC2H3O2 And HCO3-, Calculate The Kb's For The C2H3O2- And CO32- Ions. What is the Ka of pure water? f HCO3- is 5.6*10^-11 Kb = 1.0*10^-14 / 5.6*10^-11 Kb = 1.79*10^-4 So Kb value of CO3^2- is 1.79*10^-4, Posted Log in or register to post comments; Similar Questions. Table of Solubility Product Constants (K sp at 25 o C). H2CO3 H+ + HCO3- As a result, the Ka expression is: Ka = ([H+] [HCO3-])/ [H2CO3] It should be noted that carbonic acid is a weak acid, so its Ka value in water is only 4.3 x 1. 1) C2H3O2- + H2O <-----> C2H3O2H + OH-Kb = [HC2H3O2] [OH-] / [C2H3O2-] 2)Carbonate ion is derived from carbonic acid, the acid obtained when carbon dioxide gas is dissolved in water. The OpenStax name, OpenStax logo, OpenStax book covers, OpenStax CNX name, and OpenStax CNX logo All rights reserved. Posted 2 years ago A hydrolytic enzyme consumes 1.8 10-7 moles of hydrogen ions per minute in 2.50 L of a buffer that contained 0.15 M HC2H3O2 and 0.25 M C2H3O2 -. K a is the equilibrium constant for the dissociation reaction of a weak acid.A weak acid is one that only partially dissociates in water or an aqueous solution. 2. endobj What is [Pb2+] at the point at which the second anion begins to precipitate (in M)? << /Subtype /Type1 Solved Question 21 (4 points) What is the value of Kb for | Chegg.com Whereas, /AvgWidth 519 39820 What is the kb of NaC2H3O2? /Flags 16416 Which way will the equilibrium shift? The pKa of an acid is exactly the same as the pH HALFWAY to the equivalence point!Then, Ka = 10^-pKa and you're done. (8) 2 10 9 = ( x) ( x) ( 0.2 x) Step 5: Solve for x. How does Charle's law relate to breathing? Sheep Dnd 5e, /F2 10 0 R so Ka of NH4 is ~ to the Kb of acetate(C2H3O2) anion
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