2 kb for nh3 is 181 x 10 5 ka for nh4 is kw kb 10 14

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2.Kb for NH3 is 1.81 x 10^-5Ka for NH4+ is Kw / Kb= 10^-14 / 1.81 x 10^-5= 5.52 x 10^-10Comparing to our data, our numbers were really close to the actual Ka. We had 5.6x10^-10. Wewere only off by 0.08.3. NaCH3COO is the salt that is formed with NaOH and CH3COOH reacts with each other.KCH3COO is the salt formed when KOH and CH3COOH reacts with each other. In these twocases, both the akali is strong metal and the acid is the same for both salts. When the saltshydrolyze, the conjugate base from the weak acid is involved. K+ and Na+ do not react withwater; therefore, the final pH of the solution should be the same in the two salts.4. The greatest source of error in this experiment would be indicating the color and noting thecolor difference and calculations. If one does not differ the color slightly, the pH will vary withinthe results, and which it can also lead to inaccurate calculations. Comparing the color solutionswould help with noting the color difference. Also, understanding what is a base/acid would helpwith the calculations.
Work Cited
Kemp, Kenneth C., and John H. Nelson. Chemistry Laboratory.” Introduction to QualitativeAnalysis.” Boston: Pearson Learning Solutions, 2014. Print.

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Term
Fall
Professor
BATTERTON,JOHN
Tags
pH, Sodium hydroxide

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