The OpenStax name, OpenStax logo, OpenStax book covers, OpenStax CNX name, and OpenStax CNX logo /Name /F0 K a = ( x) ( x) ( 0.2 x) Step 4: Set the new equation equal to the given Ka. Your email address will not be published. HC2H3O2 is the chemical formula for the organic compound acetic acid. Step 3: Plug in the information we found in the ICE table. It has a role as a human metabolite, a Saccharomyces cerevisiae metabolite, an Escherichia coli metabolite, a mouse metabolite and a cofactor. Magnetic field lines cannot be observed using a compass or iron filings. /Length 13 0 R 2. 16.3: Equilibrium Constants for Acids and Bases /FontName /FJCPPC+Myriad-Bold << << (8) 2 10 9 = ( x) ( x) ( 0.2 x) Step 5: Solve for x. 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. /Font << If a solution initially contains 0.250M HC2H3O2, what is the equilibrium concentration of H3O+ at 25C? NH4Cl knowing that the pH value is 4.5 Compound Ka Value Given Calculated Kb Measured PH HC2H3O2 1.810-5 1.0010-11 8.00 HCO3- 5.610-11 5.7610-11 11.03 The equivalence point was reached when 43.54 mL of base had been added. That gives you an experimental value for Kb. Get it Now, By creating an account, you agree to our terms & conditions, We don't post anything without your permission, Looking for Something Else? {AJ;TGK>.DP'[{[MkE ?>upH`` Textbook content produced by OpenStax is licensed under a Creative Commons Attribution License . Electrical Hazards Pdf, How Do You Calculate the Ka of HC2H3O2? endobj 4 0 obj What is the Ka of pure water? Trending now. Sheep Dnd 5e, calculated from your measured pH's. Acetic acid Fahrenheit 451 Recognizing Irony Worksheet Answers, Your email address will not be published. /Subtype /Type1 770 656 604 595 696 534 527 682 689 285 411 614 511 846 690 717 Learn vocabulary, terms, and more with flashcards, games, and other study tools. Ka for HC2H3O2: 1.8*10^-5 Ka for HCO3-: 4.3*10^-7 Using the Ka's for HC2H3O2 and HCO3, calculate the Kb's for the C2H3O2^- and CO3^2- ions.
