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- Determine the pH of (a) A 0.10 M CH3COOH solution (ICE) (b) A solution that is 0.10 M CH3COOH and 0.10 M CH3COONa. Ka for CH3COOH = 1.8 X 10-5.What is the pH of a 0.0810 M solution of HONH;CI (Kb of HONH2 is 1.1 x 10-8)?The ionization constant of lactic acid, CH,CH(OH)CO,H, an acid found in the blood after strenuous exercise, is 1.36 x 10-4. What is the concentration of hydronium ion in the solution of 0.102 M lactic acid? CH;CH(OH)CO,H (aq) + H,O (1) → H;O• (aq) + CH;CH(OH)CO, (aq) O 0.00372 M O 0.0165 M O 0.00549 M O 0.227 M
- A saturated solution of magnesium hydroxide, Mg(OH)2, has a pH of 10.42 at 25oC. Calculate the Ksp of Mg(OH)2. (A) 9.1 x 10–12 (B) 1.8 x 10–11 (C) 3.8 x 10–11 (D) 7.3 x 10–1127. What is the pH of a neutral solution at 37°C, where Kw equals 2.5 x 10-14 (a) 7.00 (b) 6.80 (с) 13.60 (d) 7.20What is the pH of a grapefruit that contains 0.007 M citric acid solution (CsH2O-)? CH;O;(aq) + H;O(2) = CH;0, (aq) + H3Oʻ(aq) K, = 7.5 x 104 Round your answer to 2 decimal places.
- What is the hydronium ion concentration of a 0.200 M hypochlorous acid solution with Ka=3.5 x 10-8? The equation for the dissociation of hypochlorous acid is: HOCI(aq) + H2O() = H30*(aq) + OCI"(aq). O 3.7 x 10-5 M O 8.4 x 10-4 M 8.4 x 10-5 M 1.9 x 10-4 MThe thermodynamic solubility product of A9CN is 6.0×10-17. (a) What is [Ag+] in a 0.033 M KNO3 solution? 4.0 7.75e-9 mol·L-1 (b) What is [Ag+] in a 0.033 M KCN solution? 4.0 1.81e-16 X mol·L-16. (i) Define pH in words. The strong acid HClahas a pH value of 1, use the following equation for a strong acid: H+, + and convert the following expression to deduce the hydrogen ion concentration: pH = -log10 [H*] (ii) Use the above expression to deduce the pH of HCL (ag) given the concentration of the acid to be 4.5 mol/dm3 pH =
- "For H3PO4, Kaj = 7.3 x 103, Kaz = 6.2 x 106, and Kaz = 4.8 x 10-13. An aqueous solution of NaH2PO4 therefore would be" neutral basic O acidic Which anion will not form any precipitate to either AGNO3 or BaClz solution? O CH3CO0 NO3 O so? SCN All of the following anions will precipitate out in the presence of AgNO3 EXCEPT: PO O co3 CH3C0How many milliters of 0.1000 N Ba(OH)2 are theoretically required to titrate 0.0300 g of H3AsO4 to the formation of Ba(H2AsO4)2?8) What is the pH of a 0.035 M HNO, solution? HNO3 (aq) + H,0 (1) H;O* (aq) + NO; (aq)
