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- The coefficients on balancing the following reaction will be. А-1 Pb(OH)2 + HCI -> H20 + PbCl2 a) 1,2,2,1 b) 2,1,1,2 c) 1,2,1,2 d) 2,1,2,13. The maximum buffering capacity is nearest to the pKa of the buffer. Explain why?Match the solubility of the following compounds. BaCO3 A or B NaCO3 A or B KOH A or B (NH4)2SO4 A or B A. insoluble B. soluble
- Calculate the value of the equilibrium constant for each of the following reactions in aqueous solution. a) HC2H3O2 + OH- <--> C2H3O2- + H2O b) C2H3O2- + H+ <--> HC2H3O2 c)HCl + NaOH <--> NaCl + H2O and I need an actual value for Kc not just the Kc formula which I already know. thanks.Which of the followinf salts could be added to the PbCl2 solution to decrease Pb2+ concebtration, while not decreasing the Cl concentration? NaCl KNO3 PbNO3 CaSO4Review the reversible reactions given, along with the associated equilibrium constant Kat room temperature. In each case, determine whether the products or reactants are favored. A +B= CK=4.9 x 103 Choose... AgCl F Ag+ + Cl¯ Ksp=1.6 x 10-10 Choose.. CH3COOH CH3COO¯ +H* Ka=1.8 x 10-5 Choose... Al(OH)3 A1³+ Al* + 3 OH Ksp=3.7 x 10-15 Choose...
- 7. The equilibrium constant of acetic acid in an aqueous solution of of concentration is given by : a) K = (CA?) / (Ao - A) c) K= (CA?) / (Ao + As) e) K = (CA²) /4 |b) K = (CA³) / A. (Ao - A) d) K = (C²A) / (Ao - Ac) 8. For a solution of 3.12 x103 mol/L CH;COOH the specific conductance = 1.49 x 104 S/cm, and molar conductance at infinite dilution = 325.76 S.cm?/ mol, Ka is a) 5.33 x 107 c) 0.146 e) 1.20 x 105 b) 7.85 x 10 d) 1.55 x 10-7Which reagent directly reacts with substance to be titrated? Method – bromometry: Br2; I2; KBr; KBrO3;← < TETNS B Q CAN …. https://app.101edu.co [H3O+] O 2[H3O+] Кс Question 8 of 11 Construct the expression for Kc for the following reaction. CH3COOH(aq) + H₂O(1) ⇒ CH³COO¯(aq) + H³O*(aq) [H3O+]² = Drag the tiles into the numerator or denominator to form the expression. Each reaction participant must be represented by one tile. Do not combine terms. X 2[H3O+]² [H₂O] Q Q [H₂O]² h |a|a|Q| + 2[H₂O] RESET 2[H₂O]²2 [CH3COO-] 2[CH3COO-] [CH3COO-]² 2[CH3COO-1² [CH3COOH] 2[CH3COOH] [CH3COOH]² 2[CH3COOH]² T x + ⠀ Submit
- :In the following buffer solution CH3COOH 2 CH3CO0 + H+ CH3COO + H+ CH3COONA СНЗСОО + Na* h reaction occurs when few drops of HCl are added into the buffer CH3COOH becomes active and the reaction turns right .A O CH3COO- becomes active and the reaction turns right .B O CH3COO- becomes active and the reaction turns left.CC CH3COOH becomes active and the reaction turns left .D OO7) what is the pH at the equivalent point in the titration of 5 mmol Potassium acid phthalate dissolved in 100 d of water and titrated with o.1M NaOH 9 K,= 4 +r06 Ans.: 8.96Exc: Describe how you can prepare 250 ml solution of H,SO, has (0.1 N and 0.1M) if you know the sp.g is1.099 g, the percentage of acid is % 98 and M.wt. 98 g/mole.