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Q: From this reaction 2NO(g) + 2H₂(g) à N₂(g) + 2H₂O(1), NO H2 N2 Sᵒ (J/mol K) 75.10 191.5 192.3 AH°f…
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- The ionization constant, Ka, for dichloroacetic acid, HC2HO2Cl2 , is 5.0 × 10‑2. What is the pH of a 0.15 molar solution of this acid?Use the Henderson-Hasselbalch approximation to calculate the pH of a solution prepared by dissolving in water, to a final volume of 1.00 L, 0.200 mol of nitrous acid, 0.040 mol of sodium nitrite, 0.080 mol of HNO3 and 0.080 mol of Ca(OH)2.n the laboratory, a general chemistry student measured the pH of a 0.354 M aqueous solution of diethylamine, (C2H5)2NH to be 12.177. Use the information she obtained to determine the Kb for this base. Kb(experiment) =
- Consider that benzoic acid is a weak acid which has a Ka of 6.3 x 10-5 . C6H5COOH → C6H5COO- + H+ Calculate the [H+ ] ion concentration of a 0.04 M benzoic acid solution. Use your findings from above, determine the pH of the solution.Determine the base ionization constant (in x 10-5) of a 0.0925 g sample of a weak base (molar mass = 17.03 g/mol), B, that is dissolved in water to produce 100 mL of a solution with a pH of 11.00.A particular solution is 0.05M with respect to ethanoic acid and 0.2M with respect to sodium ethanoate (Ka for ethanoic acid = 2 x 10-5moldm-3). What is this type of solution called? Calculate the pH of the solution
- The solution of total volume 0.50 L was prepared by the addition of 0.10 moles of KF to sifficient water. What are the major species of the solution and pH ?How many grams of potassium lactate (C3H5O3K) need to be dissolved in 129 mL of a 1.71 M lactic acid (HC3H5O3, Ka = 1.4 × 10−4) solution, so that the pH of the solution is 4.22? Report your answer to THREE significant figures.Calculate the acid dissociation constant Ka of a 0.2 M solution of weak acid that is 0.1% ionized is
- In the laboratory, a general chemistry student measured the pH of a 0.468 M aqueous solution of methylamine, CH3NH2 to be 12.130. Use the information she obtained to determine the Kb for this base. Kb(experiment) =______Find the pH of a 0.20 M aqueous solution of benzoic acid, for which Ka = 6.33 x 10-5How do you find the equilibrium constants value for Na2CO3,NH4Cl,ZnCl2 and KAl(SO4)2. And would they Ka or Kb?