3) (1 points) Below is a log C-pH diagram for 10" M hydrogen sulfide (H2S). (a)...
Below is a \(\log C-p H\) diagram for \(10^{-3} M\) hydrogen sulfide \(\left(\mathrm{H}_{2} \mathrm{~S}\right),\) a diprotic acid, with \(\mathrm{p} K_{a 1}=6.99\) and \(\mathrm{pK}_{a 2}=12.92 .\)a. Label the lines with the species they represent, and assign correct values to the axes.b. Draw lines for \(\mathrm{H}^{+}\) and \(\mathrm{OH}^{-}\) on the diagram.c. What is the \(\mathrm{pH}\) of a solution made by mixing \(10^{-4} \mathrm{M} \mathrm{NaHS}\) and \(9 \times 10^{-4} \mathrm{M}\) \(\mathrm{H}_{2} \mathrm{~S} ?\)
Calculate the pH of a 0.982 M solution of hydrogen sulfide (H2S) Where: H2S (aq) -> H+ (aq) + HS- (aq) Ka1 = 1.0 x 10-7 HS- (aq) -> H+ (aq) + S2- (aq) Ka2 = 1.0 x 10-19 Enter your answer with at least 2 sig figs.
I need help with constructing the Log C vs pH diagram. Also I need the solution to 4.29 and 4.31. PLEASE contstruct the Log C vs pH diagram to figure out the problem. 4.29 4.30 Using a logarithmic concentration diagram, determine the pH of a solution containing 10-M Na Co, and 10-'M NaOH. Answer: 11.1 Using a logarithmic concentration diagram, find the pH of a solution containing 10-2 M acetic acid and 10-2 M ammonia. Using a logarithmic concentration diagram,...
6. (a) Construct a log Il-pH diagram to determine the pH of a solution containing 10-3 M Na2CO3 (PKAI = 6.37. KA2 = 10.33) and 10 Macetic acid (p =4.74) (b) What's the equilibrium pH if 10" M NaOH is added to the system? 7. Assume that a wastewater contains phenol (CH3OH) as a major constituent. Write the redox half reactions for the conversion of phenol to carbon dioxide (CO2) and the reaction of Cr 0-to Cr(OH). Combine the two...
3. (10 pts) What does the following statement represent? pH=- log (1.2 M) 4. (10 pts) How does the pH probe determine the pH of a 6.0M solution of HNO,?
Clear handwriting The Zn-S-O-H20 Eh-pH diagram and the hydroxide precipitation diagram shown below from the literature is useful in predicting leaching and precipitation reactions of sulfides and oxides/hydroxides. Answer the following questions relevant to these diagrams (a) Write the balanced chemical equations relevant to zinc leaching in solutions represented by lines 4, 5, 18 and 19 (b) Calculate the theoretical pH of a solution of 12 mol/L NaOH at 25 °C, assuming unit activity coefficients (H2O=H*+OH;; K = 1014 at...
7) At 50°C the value of Kw is 5.5 x 10-14. At what pH is waster neutral at 50°C. A) 6.63. B) 5.50. C) 7.00 D) 7.37. 8) A solution with a hydroxide ion concentration of 4.15 x 10-4 M is and has a hydrogen ion concentration of A) basic, 2.41 x 10-10 M B) acidic, 2.41 * 10-10 M C) basic, 2.41 x 10-11 M D) acidic, 2.41 x 10-11 M 9) Which one of the following salts, when...
10. Calculate the pH of a solution made by mixing 10,0 mL of 0.100 HCI and 150 ml of 0.100 M NOH. 11. Indicate each of the following aqueous solutions is acidic, basic, or neutral: KOH 12. A metal complex is Cr(HO) Bra a) Name the complex (25 pt) b) Give formulas of ligands. c) What is charge of Cr? d) Find the coordination number of the complex e) Sketch all possible geometric isomers, labeling cis/trans.
please help!! calculate pH of solutions on second page a-c!! 1. (4 points) A buffer solution is created with C;H,NH, and 0.012 M C;HsNH2. The K, for C,H,NH2 is 4.7 х 104. What is the concentration of C,HNH, in the buffer solution that has a pH of 11.50? а. What is the concentration of the buffer solution if 0.0011 M HC is added to the buffer in part a.? b. Why is the buffer a basic solution? Could this weak...
3) (10 points total) A 25.0-mL sample of 0.35 M HCOOH (formic acid) is titrated with 0.20 M KOH. What is the pH of the solution after 25.0 mL of KOH has been added to the acid? Ka-1.77 x 10 a) (4 points) What is the pH of the solution after 25.0 mL of KOH has been added to the acid? Ks-1.77 x 10 C 2-l04Co1s5 b) (6 points) Calculate at least nine (9) more titration points, build a table...