So, as the title says, what is the pH of H2SO3? I can't find any sources on it. I looked up its pKa in order to get a measure of its acidity, but wikipedia gives two values of 1.857, 7.172. Could someone clear this up, please? If it makes any difference, this is for A2 chemistry (AQA).

e See page 784 28 Question (1 point) Sulfurous acid is a weak acid with a Ka value of 1.2 x 10-2 2nd attempt W See Periodic Table D See Hint What is the pH of a 2.0 M solution of H2SO3?

Engineering Chemical Engineering Chemical Engineering questions and answers Find the pH and the concentrations of H2SO3, HSO3-, SO32- in each solution: (a) 0.050 M H2SO3; (b) 0.050 M NaHSO3; (c) 0.050 M Na2SO3. pK1 = 1.86 pK2 = 7.17.

Question: The curve shows the titration of H2SO3 with NaOH. The value of Ka for the HSO3 anion is approximately: H2SO3 0.1M titrated with NaOHH 12 (a) 3.2x 102 (b) 1.0x 102 10 3.2 x 10 (d)6.3x 10 (e) 1.0x 1010 pH 0 5 10 1 20 25 30 35 40 45 50 55 mL NaOH

Question: 10. What is the [H3O+], [SO32-], and pH of 0.054 M H2SO3? (Ka1 = 1.54 x 10-2, Ka2 = 1.02 x 10-7) A. [H3O+] (Keep your answer to 2 significant figures). B. [SO32-] (Keep your answer to 3 significant figures). C. pH (Keepyouranswerto2decimalplaces).

Question: Sulfurous acid ( H2SO3 ) is a diprotic acid with 𝐾a1=1.39×10−2 and 𝐾a2=6.73×10−8 . Determine the pH of each solution. A 0.244 M sulfurous acid ( H2SO3 ) solution. pH= A 0.2440.244 M sodium sulfite (Na2Na2SO3SO3) solution. pH=

Question: 12.00 1.00 pH 3. An aqueous solution of H2SO3 is titrated with NaOH (aq). The titration curve is shown to the right. a. What anion dominates the solution after 8.8 mL of NaOH (aq) are added? (Hint: H2SO3 + OH → + H2O.) Is this anion acidic or basic? 0.00 10.00 15.00 20.00 30.00 Volume of NaOH (mL) b. What anion dominates the solution after 17.6 mL of NaOH (aq)

Question: 1) Calculate the pH and the concentrations of all species present in 0.15 M H2SO3. (Ka1 = 1.5×10−2, Ka2 = 6.3×10−8) a) Calculate the concentration of H2SO3 in solution. b) Calculate the concentration of HSO−3 in solution. c)Calculate the concentration of H3O+ in solution. d)Calculate the concentration of SO2−3 in solution.

Question: Part A Calculate the pH in 0.030 M H2SO3 (for which Ka1=1.5×10−2 and Ka2=6.3×10−8). Answer:1.82 Part B Calculate the concentrations of H3O+ and OH− in 0.030 M H2SO3.

Science Chemistry Chemistry questions and answers Sulfurous acid, H2SO3 , is diprotic: pka1 1.81 , pka2 6.91. Calculate the concentrations of all acid species: [ H2SO3 ], [ HSO3- ], [ SO32- ], the pH and the pOH in a 1.85 mol L-1 solution of Sulfurous acid.