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TABLE 15.5 Acid lonization Constants (K) for Some Monoprotic Weak Acids at 25 °C Acid Formula Structural Formula lonization Reaction К. pk, = -log (2) Chlorous acid HCIO H-0-C=0 1.1 x 10-2 1.96 Stronger acids Nitrous acid HNOZ H-O-NO 5.6 x 10-4 HCIO2(aq) + H2011) = H30* (aq) + CO2 (aq) HNO2(aq) + H20(I) = H30+ (aq) + NO2 (aq) HF(aq) + H20(1) = H30* (aq) + F"(aq) 3.25 Hydrofluoric acid HF H-F 6.3 x 10-4 3.20 O Methanoic acid...
TABLE 15.5 Acid lonization Constants (K) for Some Monoprotic Weak Acids at 25 °C Acid Formula Structural Formula lonization Reaction К. pk, = -log (2) Chlorous acid HCIO H-0-C=0 1.1 x 10-2 1.96 Stronger acids Nitrous acid HNOZ H-O-NO 5.6 x 10-4 HCIO2(aq) + H2011) = H30* (aq) + CO2 (aq) HNO2(aq) + H20(I) = H30+ (aq) + NO2 (aq) HF(aq) + H20(1) = H30* (aq) + F"(aq) 3.25 Hydrofluoric acid HF H-F 6.3 x 10-4 3.20 O Methanoic acid...
Consider the following data on some weak acids and weak bases: - K acid name formula hydrocyanic acid HCN 4.9 x 10-10 acetic acid HCH,CO2 1.8 x 10-5 base name formula ammonia NH, 1.8 x 10-5 ethylamine C,H,NH2 6.4 x 10-4 Use this data to rank the following solutions in order of increasing pH. In other words, select a 'l' next to the solution that will have the lowest pH, a '2' next to the solution that will have the...
Consider the following data on some weak acids and weak bases: acid K name formula acetic acid HCH,CO, 1.8 x 105 base name formula ethylamine C,H, NH, 6.4 x 10 pyridine C H N 1.7*10* hydrocyanic acid HCN 4.9 x 10 Use this data to rank the following solutions in order of increasing pH. In other words, select a 'l' next to the solution that will have the lowest pH, a '2' next to the solution that will have the...
Using the titration curve below for an unknown weak acid which has a half-equivalence point at pH = 7.20, calculate the K, of the weak acid and select it from the list below. Acid Formula Acetic acid HC2H302 1.8 x 10-5 Carbonic acid H2CO3 Hydrocyanic acid HCN Hydrosulfuric acid H2S Dihydrogen phosphate H2PO4 4.3 x 107 4.9X 10-10 8.9 X 10-8 6.2 x 10-8 Equivalence Point рн Half-Equivalence Point Volume added
Consider the following data on some weak acids and weak bases: acid K. name formula name base Kg formula hydroxylamine HONH, 1.1 10-8 hydrocyanic acid lic acid | HCN | 49 x 10-10 | HCN hydrofluoric acid HF 6.8 x 10-4 methylamine 1.4 x 10-4 Use this data to rank the following solutions in order of increasing pH. In other words, select a 'l' next to the solution that will have the lowest pH, a '2' next to the solution...
Consider the following data on some weak acids and weak bases: acid base K name formula name formula hydrocyanic acid HCN 4.9x10-10 acetic acid HCH,CO2 1.8 x 10-5 ethylamine C,H,NH, 6.4*10-4 [CH, NH, 4.3 x 10-10 aniline Use this data to rank the following solutions in order of increasing pH. In other words, select a 'l' next to the solution that will have the lowest pH, a '2' next to the solution that will have the next lowest pH, and...
Calculate the equilibrium concentrations of all chemical species present in a 0.10 M H CO.(aq) solution. What is the percent ionization of the acid and resulting pH? Units Units [H2CO3) = Number [HCO3) = Number [CO32) = Number [H30+) = Number Units Units % ionization = Number pH = Number Ka Acid Acetic Ammonium Formula CH3COOH NH4+ H3B03 1.8 x 10-5 5.6 x 10-10 5.4 x 10-10 Boric Carbonic H2CO3 Chlorous Formic Hydrocyanic Perchloric HCIO2 HCOOH HCN HC104 4.5 x...
4. (14 pts) Assume that you have a 0.250 L buffer solution that is 0.40 M acetic acid, HC2H3O2, and 0.50 M acetate ion, HC2H3O2, and 0.50 M acetate ion, C2H30. Calculate the pH after 100 mL of 0.10 M HCl is added to this buffer. HC,H,02(aq) + H,0(I) C,H30, (aq)+H,0. (aq) K.-1.8x105
Which one of the following salts, when dissolved in water, produces the solution with the highest pH? HINT: Remember that BASES have high pH. Mgo CH3NH31 LICIO4 O NaHSO4 Which of the following are weak diprotic acids? hydrocyanic acid - HCN, sulfuric acid - H2SO4, phosphoric acid - H3PO4 carbonic acid - H2CO3, hydrosulfuric acid - H2S, acetic acid - CH3COOH O carbonic acid - H2CO3, oxalic acid - H2C2O4, sulfurous acid - H2SO3 formic acid - HCOOH, acetic acid...