Question 12 3 pts What is the pH of an aqueous 0.10 M NaC,H,O solution? O...
The pH at 25 °C of an aqueous solution of the sodium salt of o-cresol (NaC,H o) is 11.45. Calculate the concentration of CH O in this solution, in moles per liter. Ka for HGH-О is equal to 6.310-11 Submit Answer 3 question attempts remaining The pH at 25 °C of an aqueous solution of the sodium salt of o-cresol (NaC,H o) is 11.45. Calculate the concentration of CH O in this solution, in moles per liter. Ka for HGH-О...
7. (10 pts) Determine the pH of a 0.225 M aqueous solution of NaC; Hy02. K, for HC HO2 is 1.8 x 10 pH=
D Question 25 Calculate the pH of a 0.10 M CH3NH,Cl solution. Ky(CH NH) - 4.4x104 5.82 943 Сосоо 4.36 8.18 Question 26 5 pts When a strong acid is added to a strong base in a titration, what is expected at the equivalence point? A acidic solution from the conjugate acid of the strong base A neutral solution with a pH - 7 A acidic solution from the strong acid A basic solution from the strong base A basic...
2. Calculate the pH of a 0.10 M aqueous solution of sodium acetate, NaC2H302. (2 pts)
Question 10 3 pts What is the pH of an aqueous 0.0025 M NaOH solution? 10,20 8.95 11.40 2.60
B. pH of Salt Solutions: Salt Solution: NaC,H,O, Measured pH 6.90 NHC 6.13 Na.co, 10.78 Based on your measured pH values, indicate whether the aqueous solution of the salt is acidic, basic, or neutral. Write the net-ionic equations for any hydrolysis (reaction with water) that occurs. If no hydrolysis occurs, write "No Reaction. Explain in words why each salt is acidic, basic, or neutral. NaC,H,02 Nat +H,0 C,H,O,- + H,0 NH CI NH, +H04 Cl + H,0 Na,Co Nat +HO...
Question 29 3 pts What is the pH of an aqueous solution after 20.0 mL of 0.60 M NaOH is added to a 40.0 ml. of 0.30 MH2C2O4? O 4.26 7.95 O 2.71 8.31
Question 28 3 pts What is the pH of an aqueous solution after 10.0 mL of 0.20 M NaOH is added to a 35.0 mL of 0.30 MHCIO? 05.12 2.77 O 3.48 6.89
What is the pH of an aqueous solution with H,01 - 6x10-12 M? Express the pH numerically using one decimal place. ► View Available Hint(s) V AED * O ? pH = Submit Part B Rank the following from most to least acidic. Rank from most to least acidic. To rank items as equivalent, overlap them. View Available Hint(s) Reset Help pH = ] [ --] [01-10 | PH-23] [40] - 10 Most acidic Least acidic
6. b) A student mixes 8.203 g of NaC,H,O, with 100 mL of 1.0 M HC,H,O2, what is the pH of the buffer? (4 pts) Wall Co, Hº 3) NaHCO₃ H2O H₂CO NOCH ka 2.22x /у- PO4-р 2.22x 100 = [071%.1 [ot] =4,7x10-S 14 Potter pOH = -log[ott 14-4.32-1 OH = 4,32 (pH=9.631 222 x 10 8 b) If you add 5.0 mL of 0.5 M NaOH solution to 20.0 ml to the buffer above, what is the pH of...