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For each of the acid-base reactions in Section, compare the pKa values of the acids on...
Inspect the compounds below. The brackets contain the pKa values for the acids. NH4+ (pKa =...
Inspect the compounds below. The brackets contain the pKa values for the acids. NH4+ (pKa = 9.2); CH3OH (pKa = 16); C6H5SO3H (pKa = -6.5); CH3COOH (pKa =4.7) Of the compounds given above, which is the conjugate base of the weakest acid? (a) NH3 (b) CH30 (c) C6H3SO3 (d) CH3COO- (e) The answer cannot be determined from the information provided.
Write the products and estimate the equilibrium constant (show your work) for each of the following acid-base react...
Write the products and estimate the equilibrium constant (show your work) for each of the following acid-base reactions: 17. (See attached Table.) 3 Conjugate Base Approximate p SbFi S- 12 -10 H2SO -6.5 (CHIO (CHIC-o CH30H H20 NO3 -2.9 -1.74 Hj0 0.18 CF CO,H 4.75 CH,CO,H H CO CH,COCH COCHs NH4 80 / Ψ HCO CH3NH3 H20 CH,NH2 15.7 CH,CH20 (CHs) CO 16 18 (CH3),СОН CH,COCH HC CH NH3 CH,CH2 CH,CH 9.31
Write the products and estimate the equilibrium constant...
For each of the following reactions, use the pKa values given in the Table to predict...
For
each of the following reactions, use the pKa values given in the
Table to predict whether reactants or products are favored at
equilibrium.
For each of the following reactions, use the pKa values given in the Table to predict whether reactants or products are favored at equilibrium Compound Hydronium ion (H30*) Dichloroacetic acid (C2H202Cl2) Dihydrogen sulfide (H2S) Phenol (C6H5OH) Piperidinium ion (C5H12N*) Water (H20) pKa 1.7 1.35 7.0 10.0 11.2 15.7 Drag the appropriate items to their respective bins....
TABLE 15.5 Acid lonization Constants (K) for Some Monoprotic Weak Acids at 25 °C Acid Formula...
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...
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...
WORKSHEET -SECTION V 1. Complete the following acid-base reactions, and using the pka table from your...
WORKSHEET -SECTION V 1. Complete the following acid-base reactions, and using the pka table from your course material, predict the orientation of the equilibrium in each of them (use double half arrows) 5 (d) A. CH3CO2H + HCO3 B. CH3CO2H + NH3 C. C6H5OH + CO2- D. CN + HCO3 ) E. CHCO2 + H2O F. PO43- + CH3CO2H G. NH4+ + HCO3; H. NH4+ + OH I. H3PO4 + CH2CH,OH J. HI + SbF6 10 wo o DOVIUS K....
1. Which of the followi ch of the following reactions is not readily explained by the Arrhenius concept of acids a...
1. Which of the followi ch of the following reactions is not readily explained by the Arrhenius concept of acids and bases? a. A. HCl(aq) + NaOH(aq) - NaCl(aq) + H20() b. H30(aq) + OH-(aq) + 2H20(1) c. HCI(g) + NH3(g) - NH4Cl(s) d. HC2H302(aq) + H2O(l) H30*(aq) + C2H302-(ag) e. H30 (aq) + OH-(aq) + 2H2O(aq) 2. Classify each of the following species as Brønsted acid or base or both: a) H20, b) OH", c) H30, d) NH3, e)...
pKa Conjugate base Acid formula Conjugate base name Acid name F3CCOOH 0.20 F3ccoo trifluoroacetic acid trifluoroacetate...
pKa Conjugate base Acid formula Conjugate base name Acid name F3CCOOH 0.20 F3ccoo trifluoroacetic acid trifluoroacetate ion 13.80 Cl3CCOOH 13.34 0.66 Cl3CCOO trichloroacetic acid trichloroacetate ion HOOCCOOH 1.23 HOOCCOO oxalic acid hydrogen oxalate ion 12.77 Cl2HCCOOH 12.70 dichloroacetic acid 1.30 Cl2HCCOO dichloroacetate ion H2SO3 12.23 1.77 HSO3 sulfurous acid hydrogen sulfite ion 1.92SO42- HSO4 hydrogen sulfate ion sulfate ion 12.08 HCIO2 1.95 CI02 chlorous acid chlorite ion 2.12 H2PO.4 phosphoric acid H3PO dihydrogen phosphate ion 11.88 CIH2CCOOH 2.87 CIH2CCOO 11.13...
Complete the table for an aqueous solution @ 25°C each row represents one solution Грн POH...
Complete the table for an aqueous solution @ 25°C each row represents one solution Грн POH 3.25 0.25 (H) (OH) Acidic or basic 6.14x10 12.25 1.77 9.83x102 A 0.185M solution of weak acid has a pH of 2.95. Calculate the lonization constant (K) for the acid. For this you will need to determine the relationship between the [HA], and the [H01. You're given [HA] and you'll need to find [H,0+- you can get this from pH. Just as we have...
It's a weak acid strong base titration Experiment 4: Identification of an unknown acid by titration...
It's a weak acid strong base titration
Experiment 4: Identification of an unknown acid by titration Page 2 of 15 Background In this experiment, you will use both qualitative and quantitative properties to determine an unknown acid's identity and concentration. To do this analysis, you will perform a titration of your unknown acid sample-specifically a potentiometric titration where you use a pH meter and record pH values during the titration, combined with a visual titration using a color indi- cator...
Inspect the compounds below. The brackets contain the pKa values for the acids. NH4+ (pKa = 9.2); CH3OH (pKa = 16); C6H5SO3H (pKa = -6.5); CH3COOH (pKa =4.7) Of the compounds given above, which is the conjugate base of the weakest acid? (a) NH3 (b) CH30 (c) C6H3SO3 (d) CH3COO- (e) The answer cannot be determined from the information provided.
Write the products and estimate the equilibrium constant (show your work) for each of the following acid-base reactions: 17. (See attached Table.) 3 Conjugate Base Approximate p SbFi S- 12 -10 H2SO -6.5 (CHIO (CHIC-o CH30H H20 NO3 -2.9 -1.74 Hj0 0.18 CF CO,H 4.75 CH,CO,H H CO CH,COCH COCHs NH4 80 / Ψ HCO CH3NH3 H20 CH,NH2 15.7 CH,CH20 (CHs) CO 16 18 (CH3),СОН CH,COCH HC CH NH3 CH,CH2 CH,CH 9.31
Write the products and estimate the equilibrium constant...
For
each of the following reactions, use the pKa values given in the
Table to predict whether reactants or products are favored at
equilibrium.
For each of the following reactions, use the pKa values given in the Table to predict whether reactants or products are favored at equilibrium Compound Hydronium ion (H30*) Dichloroacetic acid (C2H202Cl2) Dihydrogen sulfide (H2S) Phenol (C6H5OH) Piperidinium ion (C5H12N*) Water (H20) pKa 1.7 1.35 7.0 10.0 11.2 15.7 Drag the appropriate items to their respective bins....
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...
WORKSHEET -SECTION V 1. Complete the following acid-base reactions, and using the pka table from your course material, predict the orientation of the equilibrium in each of them (use double half arrows) 5 (d) A. CH3CO2H + HCO3 B. CH3CO2H + NH3 C. C6H5OH + CO2- D. CN + HCO3 ) E. CHCO2 + H2O F. PO43- + CH3CO2H G. NH4+ + HCO3; H. NH4+ + OH I. H3PO4 + CH2CH,OH J. HI + SbF6 10 wo o DOVIUS K....
1. Which of the followi ch of the following reactions is not readily explained by the Arrhenius concept of acids and bases? a. A. HCl(aq) + NaOH(aq) - NaCl(aq) + H20() b. H30(aq) + OH-(aq) + 2H20(1) c. HCI(g) + NH3(g) - NH4Cl(s) d. HC2H302(aq) + H2O(l) H30*(aq) + C2H302-(ag) e. H30 (aq) + OH-(aq) + 2H2O(aq) 2. Classify each of the following species as Brønsted acid or base or both: a) H20, b) OH", c) H30, d) NH3, e)...
pKa Conjugate base Acid formula Conjugate base name Acid name F3CCOOH 0.20 F3ccoo trifluoroacetic acid trifluoroacetate ion 13.80 Cl3CCOOH 13.34 0.66 Cl3CCOO trichloroacetic acid trichloroacetate ion HOOCCOOH 1.23 HOOCCOO oxalic acid hydrogen oxalate ion 12.77 Cl2HCCOOH 12.70 dichloroacetic acid 1.30 Cl2HCCOO dichloroacetate ion H2SO3 12.23 1.77 HSO3 sulfurous acid hydrogen sulfite ion 1.92SO42- HSO4 hydrogen sulfate ion sulfate ion 12.08 HCIO2 1.95 CI02 chlorous acid chlorite ion 2.12 H2PO.4 phosphoric acid H3PO dihydrogen phosphate ion 11.88 CIH2CCOOH 2.87 CIH2CCOO 11.13...
Complete the table for an aqueous solution @ 25°C each row represents one solution Грн POH 3.25 0.25 (H) (OH) Acidic or basic 6.14x10 12.25 1.77 9.83x102 A 0.185M solution of weak acid has a pH of 2.95. Calculate the lonization constant (K) for the acid. For this you will need to determine the relationship between the [HA], and the [H01. You're given [HA] and you'll need to find [H,0+- you can get this from pH. Just as we have...
It's a weak acid strong base titration
Experiment 4: Identification of an unknown acid by titration Page 2 of 15 Background In this experiment, you will use both qualitative and quantitative properties to determine an unknown acid's identity and concentration. To do this analysis, you will perform a titration of your unknown acid sample-specifically a potentiometric titration where you use a pH meter and record pH values during the titration, combined with a visual titration using a color indi- cator...
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