Arrange the following carboxylic acids in the order of increasing strength (from weakest to the strongest): OH HO H3CO O2N 2 O Al 1 23 BI 3 2 1 C121<3 D)23 1
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- 9. Order the following solutions according to: a) its increasing acidity: A. pH x 2.00 B. [H3O + ] s 1.00x10 -10 M C. pOH x 1.00 b) His growing basicity A. pH x 2.00 B. pOH x 11.0 C: [H3O+] x 1x10-6 MSelect the weaker acid from each of the following pairs: I. HI or HBrII. H3AsO3 or H2SeO3III. HNO3 or HNO2Phosphoric acid (H3PO4) is tribasic, with pKa's of 2.14, 6.86, and 12.4. The charge of the ionic form of the conjugate base that predominates at pH 8 is _______ .
- Arrange the structure of the image with regard to acidity. 1 being the least and 3 being the mostAmmonia, NH3, is a base and will readily accept a proton in accordance with the following reaction: NH3(aq) + H2O <-> NH4+ + OH- ∆G0NH3(ag) = -26.6 kJ/mol ∆G0H2O = -237.1 kJ/mol ∆G0NH4+ = -79.3 kJ/mol ∆G0OH- = -157.2 kJ/mol For NH3 dissolving in water and forming NH4- and OH-, at pH 9.0, [NH3] = 10-5 mol/L, [NH4-] = 10-5 mol/L. Is the reaction at equilibrium? If not, in which direction is the reaction going?What is the conjugate acid of each of the following bases? - A. B. C. D. E. F. G. H. SO42- - A. B. C. D. E. F. G. H. H2O - A. B. C. D. E. F. G. H. HCO3- - A. B. C. D. E. F. G. H. F- A. HSO4+ B. H2CO3 C. HSO4- D. OH- E. HF+ F. HF G. H3O+ H. CO32-
- A triprotic acid (H3A) has pKA values of 3.08 (pKa1), 5.39 (pKa2), and 7.70 (pKa3). Which of the equalities is true when the pH is 4.24? Which of the equalities is true when the pH is 6.55? What is the predominant species of H3A at pH 3.85? What is the predominant species of H3A at pH 9.09?Calculate the pH at25°C of a 0.65M solution of potassium acetate KCH3CO2. Note that acetic acid HCH3CO2 is a weak acid with a pKa of4.76. Round your answer to 1 decimal place.(a) Given that Ka for acetic acid is 1.8 x 10-5 and that forhypochlorous acid is 3.0 x 10-8, which is the stronger acid?(b) Which is the stronger base, the acetate ion or the hypochloriteion? (c) Calculate Kb values for CH3COO- and ClO-.
- The hydride ion is very basic and reacts readily with compounds having even weakly acidic protons to form H2. True or false?Given that log Kso for Zr(OH)4(s) is 10-54.1, at what pH would the maximum concentration of Zr4+(aq) be 10-3 M?Which solution has the highest concentration of H3O+: a 0.50 M solution of acetic acid (CH3CO2H),or a0.50 Msolution offormic acid (HCO2H)? Ka of acetic acid is 1.8× 10−5 and Ka of formic acid is 1.8×10−4. Same Acetic acid Formic acid