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(a)
Interpretation:
The reaction favors the reactant or the product the most should be identified.
Concept introduction:
Stronger the acid then more it dissociate to loose the proton and weak conjugate base which will not accepts the proton again and hence the equilibrium contains mostly the products while in weaker acid, the dissociation not takes place at that extent and hence the equilibrium favours the reactant mostly.
(b)
Interpretation:
The reaction favors the reactant or the product the most should be identified.
Concept introduction:
Stronger the acid then more it dissociate to loose the proton and weak conjugate base which will not accepts the proton again and hence the equilibrium contains mostly the products while in weaker acid, the dissociation not takes place at that extent and hence the equilibrium favours the reactant mostly.
(c)
Interpretation:
The reaction favors the reactant or the product the most should be identified.
Concept introduction:
Stronger the acid then more it dissociate to loose the proton and weak conjugate base which will not accepts the proton again and hence the equilibrium contains mostly the products while in weaker acid, the dissociation not takes place at that extent and hence the equilibrium favours the reactant mostly.
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Chapter 14 Solutions
EBK BASIC CHEMISTRY
- For each of the following reactions, predict whether the equilibrium lies predominantly to the left or to the right. Explain your predictions briefly. (a) H2S(aq) + CO32(aq) HS(aq) + HCO3(aq) (b) HCN(aq) + SO42(aq) CN(aq) + HSO4(aq) (c) SO42(aq) + CH3CO2H(aq) HSO4(aq) + CH3CO2(aq)arrow_forwardFor each of the following reactions predict whether the equilibrium lies predominantly to the left or to the right. Explain your prediction briefly. (a) HCO3(aq) + SO42(aq) CO32(aq) + HSO4(aq) (b) HSO4(aq) + CH3CO2(aq) SO42(aq) + CH3CO2H(aq) (c) [Co(H2O)6]2+(aq) + CH3CO2(aq) [Co(H2O)5(OH)]+(aq) + CH3CO2H(aq)arrow_forwardIn each of the following acid-base reactions, identify the Brnsted acid and base on the left and their conjugate partners on the right. (a) C2H5N(aq) + CH3CO2H(aq) C5H5NH+(aq) + CH3CO2(aq) (b) N2H4(aq) + HSO4(aq) N2H5+(aq) + SO42(aq) (c) [Al(H2O)6]3+ (aq) + OH(aq) [Al(H2O)5OH]2+ (aq) + H2O+()arrow_forward
- Calculate the pKa value for each of the following acids. a. Phosphoric acid (H3PO4), Ka = 7.5 103 b. Hydrofluoric acid (HF), Ka = 6.8 104 c. Hydrogen phosphate ion (HPO42), Ka = 4.2 1013 d. Propanoic acid (HC3H5O2), Ka = 1.3 105arrow_forwardA solution contains a mixture of acids: 0.50 M HA (Ka = 1 103), 0.20 M HB (Ka = 1.0 1010), and 0.10 M HC (Ka = 1.0 1012). Calculate the [H] in this solution.arrow_forwardDefine or illustrate the meaning of the following terms: a. Ka reaction b. Ka equilibrium constant c. Kb reaction d. Kb equilibrium constant e. conjugate acidbase pairarrow_forward
- Barbituric acid, HC4H3N2O3, is used to prepare barbiturates, a class of drugs used as sedatives. Its Ka is 9.8105. Calculate [H+] in solutions prepared by adding enough water to the following to make 1.45 L. (a) 0.344 mol (b) 28.9 garrow_forwardWhat is the conjugate acid of each of the following? What is the conjugate base of each?. (a) OH-. (b) H2O. (c) HCO3-. (d) NH3. (e) HSO4-. (f) H2O2. (g) HS-. (h) H5N2+arrow_forwardIf X is a weak base, which equilibrium forms the basis for the Ka of HX+? a. HX+(aq) + H2O(l) ⇌ X(aq) + H3O+(aq) b. X(aq) + H2O(l) ⇌ HX+(aq) + OH–(aq) c. X(aq) + H3O+(aq) ⇌ HX+(aq) + H2O(l) d. HX+(aq) + OH–(aq) ⇌ X(aq) + H2O(l)arrow_forward
- A- is a weak base. Which equilibrium corresponds to the equilibrium constant K a for HA? a. A- (aq) + H3O+ (aq) HA (aq) + H2O (l) b. A- (aq) + OH- (aq) HOA2- (aq) c. A- (aq) + H2O (l) HA (aq) + OH- (aq) d. HA (aq) + H2O (l) H2A+ (aq) + OH- (aq) e. HA (aq) + H2O (l) H3O+ (aq) + A- (aq)arrow_forwardWhat is the order of increasing acidity for the following compounds? (least to most) COOH COOH COOH CH₂COOH H₂C NO₂ II III IV IV, II, III, I II, III, I, IV O I, III, II, IV O IV, I, III, II What is the order of increasing acidity for the following compounds? (least to most) Br I CH,CH,COOH BCH,CH,COOH CHỊCH,CH,OH CHỊCHCOOH I II III IV IV, II, I, III I, II, IV, III III, I, II, IV III, IV, II, Iarrow_forwardWhat is [OH-] in a solution of 1.25 M NH3 and 0.78 M NH4NO3? NH3 (aq) + H2O (l) = NH4 (aq) + OH- (aq) Kb= 1.8 x 10-5arrow_forward
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