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Predict the net direction and whether Kc is greater or less than 1 for each of the following reactions (assume equal initial concentrations of all species):
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- Which equation shows a weak acid in water? O LIOH(s) --> Li* (aq) + OH (aq) O HF(aq) + H,0(1) E→ H30*(aq) + F(aq) O HI(aq) OH (aq) + l'(aq) O HCl(aq) + H,O(aq) ---> Cl (aq) + H;O*(aq)(ii) Ph. - COOHWhich of the following reactions is an acid-base reaction? A) AGNO:(aq) + KF(aq) → AgF(s) + KNO:(aq) B) NH:(aq) + HF(aq) → NH:"(aq) + -F(aq) C) NO: (aq) + AI(s) → NH3(g) + AIO: (aq) D) CH:(g) + 202(g) - 2H:O(g) + CO:(g)
- 8) What is the pH of a 0.035 M HNO, solution? HNO3 (aq) + H,0 (1) H;O* (aq) + NO; (aq)Identify the acid, base, conjugate acid and conjugate base in the following reactions: HF (aq) + H,O (1) H;O* (aq) + F ¯(aq) CH;CH,NH, (aq) + H,O (1) CH;CH,NH;" (aq)+OH (aq)Phosphoric acid, H3PO4, is a polyprotic acid. What is the THIRD ionization reaction for phosphoric acid in water? HPO (aq) → H+ (aq) + PO³ (aq) ○ H3PO4 (aq) → 3 H+ (aq) + PO¾- (aq) 4 H₂PO (aq) → HPO²¼¯ (aq) + H+ (aq) H3PO4 (aq) → H₂PO (aq) + H+ (aq)
- Which of the following would be the acid equilibrium equation for HONH;CI? A) HONH;* (aq) = NH, (aq) + он (аq) B) HONH,CI (aq) = HONH;* (aq) + Cl- (aq) C) HONH;* (aq) + H20 (1) = HONH2 (aq) + H30* (aq) D) HCI (aq) = H+ (aq) + Cl- (aq)Indicate the pH of the following aqueous solutions.(A) 0.0025 M H2SO4 (aq) (B) 0.0012 M KOH (aq)The probe of the pH meter shown here is sitting in a beakerthat contains a clear liquid. (a) You are told the liquid ispure water, a solution of HCl(aq), or a solution of KOH(aq).Which one is it? (b) If the liquid is one of the solutions,what is its molarity? (c) Why is the temperature given onthe pH meter?
- Which of the following are acid-base reactions? 1. AgNO3(aq) + HCl(aq) → AgCl(s) + HNO3(aq) 2. NH3(aq) + H2O(1) + OH-(aq) NH4" (aq) + 3. Zn(s) + 2Ag*(aq) → 2Ag(s) + Zn2+ (aq) a. 3 only b. 1, 2, and 3 c. 2 only d. 2 and 3 e. 1 onlyIn the following acid-base equilibria of weak acids in water, label the acid (A), the base (B), the conjugate acid (CA), and the conjugate base (CB). HCIO, (aq) + H,O(1) = H,O*(aq) + CI0, (aq) H,CO, (aq) + H,O1) – H;O*(aq) + HCO; (aq) Answer Bank H,O(1) + CH;NH†(aq) = CH,NH,(aq) + H;O*(aq) СА А B СВ CH, COOH(aq) + H,O(1) - CH;COO (aq) + H;O*(aq)Determine the pH of each solution and classify it as acidic,basic, or neutral.(a) pOH = 8.5(b) pOH = 4.2(c) pOH = 1.7(d) pOH = 7.0