4. (20 point) known reaction CaCla(g) Ca+2Cto) with AG CaCl2 aqueous solution, Y0.518, (a) compute Henry's...
an aqueous solution of Ca(OH)2 with a concentration Ca(OH)2(ag)+2HC1 (aq)CaCl, (ag)+H,O() An aqueous solution of Ca(OH)2with a concentration of 0.164 M was used to titrate 25.00 mL of aqueous HCI. 16.53 mL of the Ca(OH)2was required to reach the endpoint of the titration. ACID-BASE TITRATIONS Introduction Pt A titration is the sequential addition of reactant to a solution containina other Part 1 (1 point) How many moles of base were required to react completely with the acid in this reaction?...
A dilute aqueous solution of calcium hydroxide at 25°C reacts with gaseous hydrogen chloride via the following reaction. 2HCI(g) + Ca(OH),lag, r=-) → Caci,lag, r= 0)+2H, 0(1) If the hydrogen chloride enters the reactor at 71.0°C, and the solution exits at 25°C, how much heat must be removed for every mole of CaCl2 produced? The heat of solution of Ca(OH)2 is -1008.2 kJ/mol, the heat of formation of Ca(OH)is-985.65 kJ/mol, the heat of solution of CaCl2 is -875.07 kJ/mol and...
Ca(OH)2 (aq) + 2HCl (aq) CaCl2 (aq) + H2O (l) An aqueous solution of Ca(OH)2with a concentration of 0.161 M was used to titrate 25.00 mL of aqueous HCl. 18.63 mL of the Ca(OH)2was required to reach the endpoint of the titration. An aqueous solution of Ca(OH)2with a concentration of 0.161 M was used to titrate 25.00 mL of aqueous HCl. 18.63 mL of the Ca(OH)2was required to reach the endpoint of the titration. A) How many moles of base...
(2a) Calculate AG for reaction of hydrogen sulfide (gas) bubbling into an aqueous solution at the conditions given. The AGºrx = 45.6 kJ mol!. Assume the reaction takes place at 25°C. H2S(g, 0.75 atm) → H(aq, pH = 8.50) + HS (aq, 0.75 M)
The experimentally measured freezing point of a 1.50 m aqueous solution of CaCl2 is -6.70°C. The freezing point depression constant for water is Kf = 1.86°C/m. Assume the freezing point of pure water is 0.00°C. The experimentally measured freezing point of a 1.50 m aqueous solution of CaCl2 is -6.70°C. The freezing point depression constant for water is Kf = 1.86°C/m. Assume the freezing point of pure water is 0.00°C. What is the predicted freezing point if there were no...
Calculate AG for the following reaction at 25°C. 2 Ca(s) + O2(g) → 2 Ca(s) (J/K mol) Substance AH (kJ/mol AG (kJ/mol) Ca(s) Ca2+(aq) CaO(s) Ca(OH)2(5) CaF2(5) CaCl(s) O(g) 028) O3(aq) Oz(8) -542.96 -635.6 -986.6 -1,214.6 -794.96 249.4 -553.0 -604.2 -896.8 -1,161.9 -750.19 230.1 41.6 -55.2 39.8 83.4 68.87 113.8 160.95 205.0 110.88 237.6 -12.09 142.2 16.3 163.4
4 of 4 The dissolution reaction is CaCl2(8) Ca?" aq) + 2 Cl(aq) If a solution is made that is 0.15 M in this compound, CaCly, what are the concentrations of the two ions? M Cat MCX resubmit
2. When 40.7 g of the "salt" HgCl is dissolved in 100 g water, the freezing point depression is observed to be 2.83 K. Based on this, does one expect the solution to readily conduct electricity? 3. What are the solvent and solute activities and activity coefficients for a component having 25% mole fraction and obeying the vapor pressure equation P, = 78.8x, (0.65x4+0.18x)? (Hint: think about Raoult's and Henry's Laws) 4. The Debye-Huckel limiting law is strictly valid only...
Consider the following reaction Ca(s) + 2HCl(aq) --> CaCl2(aq) + H2(g) If the theoretical yield of CaCl2 is 0.736 g and the actual yield is 0.720 g, what is the percent yield? A.)53.0% b.)32.6% c.)95.5% d.)97.8% e.)102%
An aqueous CaCl2 solution has a vapor pressure of 80.2 mmHg at 50 ∘C. The vapor pressure of pure water at this temperature is 92.6 mmHg. What is the concentration of CaCl2 in mass percent? A hypothetical solution forms between a solid and a liquid. The values of the thermodynamic quantities involved in the process are shown in the following table. Action Enthalpy separation of solute 11.5 kJ/mol separation of solvent 21.8 kJ/mol formation of solute-solvent interactions -86.7 kJ/mol solute...