I’m stuck need help Weak Acids -1. An ICE table will be required for all weak ac
ID: 304724 • Letter: I
Question
I’m stuck need help Weak Acids -1. An ICE table will be required for all weak acid calculations. Why is an IC E table unnecessary for calculations involving strong acids? Name the six strong acids. 0. An ICE table will be required for all weak acid calculations. Why is an ICE table unnecessary for calculations involving strong acids? Name the six strong acids. I. What is the [H'[H,O"T, OH'1. p, pOH, percent ionization, pK, and pk, of 0,100 M chlor rous acid? K, 1.1 x 10 (Compare to pli of 0.100 M HC1.) 2. What is the ([Hr O' pH. pOH, percent ionization, pk, and pk, of 0.100M chloroacetic acid, a monoprotic acid.? K,-1.4 x 10 (Compare to pH of 0.100 M HC) [IK ? 1.80 10 [OCo], pre top11 percent in ization, pK,and pk,of0.100 M (OH 'l. pH, pOH, percent ionization, pK, and pK, of 0.100 M 4. What is the [H' Ho formic acid? K,-1.8 x 10- 5. Which acid is stronger, acetic or formic acid? Howdjaknow? o. Which base is stronger, acetate (C,H,0,1) or formate (CH,O? Whydyathinkso? ac foowdiknow? 7. The pH of a 0.100 M hydrosemanthakolbic acid, a monoprotic acid is 3.20. Calculate the K, 8. The pOH of a solution of hydrojelanimarric acid, a monoprotic acid, is 10.90. Its pk,- 5.30. 9. The percent ionization of a 0.100 M monoprotic acid, HA, is 2.00%. Calculate the K, and 10. Calculate the percent ionization of 0.100 M,0.0100 M and 0.00100 M (do not do quadratic Calculate the initial concentration? the pH. acetic acid. What is the relationship between initial molarity and percent ionization? Why?Explanation / Answer
I am solving the first question, Q7 as per Chegg guidelines, post multiple question to get the remaining answers
Q7)
Let the weak acid will be
HA ========= H+ + A-
Initial 0.100 0 0
Final (0.100-x) x x
[H+] = 10^(-pH) = 10^(-3.20) = 6.31 * 10^(-4)
Ka = [Products]/[Reactants] = [H+][A-]/[HA] = (6.31 * 10^(-4))^2/(0.100 - 6.31 * 10^(-4)) = 4.0 * 10^(-6)
Hence the Ka of the weak acid will be 4.0 * 10^(-6)
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