1. Hypochlorous acid has a pKa = 7.46 (a) Determine the pH and percent ionization of 0.25M hypochlorous acid (b) Consider a 0.25 M hypochlorous acid / 0.35 M sodium hypochlorite buffer. What is the pH of this buffer. (c) What is the pH of a solution made by mixing 15.0 mL of 0.1 M NaOH with 135 mL of the buffer.
1. Hypochlorous acid has a pKa = 7.46 (a) Determine the pH and percent ionization of...
Please answer both questions.
24. Calculate the percent ionization for a 0.0240 M hypochlorous acid solution. The ka for hypochlorous acid is 3.4x10-8 27. A chemist wants to make a pH 7.29 buffer. Two chemical combinations are available: hypochlororous acid (HCIO, K, = 3.5x10%) with sodium hypochlorite, or sodium dihydrogen phosphate (NaH2PO4, K. = 6.2x10") with sodium hydrogen phosphate. Which chemical combination is best for the buffer? What [base]/(acid) ratio should be used?
The pKa of hypochlorous acid is 7.530. A 58.0 mL solution of 0.145 M sodium hypochlorite (NaOCI) is titrated with 0.300 M HCI.Calculate the pH of the solution after the addition of 10.6 mL of 0.300 M HCI.Calculate the pH of the solution after the addition of 29.0 mL of 0.300 M HCI.Calculate the pH of the solution at the equivalence point with 0.300 M HCl.
The pKa of hypochlorous acid is 7.530. A 56.0 mL solution of 0.134 M sodium hypochlorite (NaOCl) is titrated with 0.311 M HCl. Calculate the pH of the solution b) after the addition of 25.6 mL of 0.311 M HCl.c) at the equivalence point with 0.311 M HCl.
The pKa of hypochlorous acid is 7.530. A 55.0 mL solution of 0.123 M sodium hypochlorite (NaOCl) is titrated with 0.261 M HCI. Calculate the pH of the solution after the addition of 8.24 mL of 0.261 M HCl. pH = Calculate the pH of the solution after the addition of 26.7 mL of 0.261 M HCI. pH = Calculate the pH of the solution at the equivalence point with 0.261 M HCl. pH =
The pKa of hypochlorous acid is 7.530. A 58.0 mL solution of 0.123 M sodium hypochlorite (NaOCl) is titrated with 0.255 M HCl. Calculate the pH of the solution after the addition of 8.48 mL of 0.255 M HCl. pH= Calculate the pH of the solution after the addition of 29.7 mL of 0.255 M HCl. pH= Calculate the pH of the solution at the equivalence point with 0.255 M HCl. pH=
pKa of hypochlorous acid is 7.530. A 52.0 mL solution of 0.104 M sodium hypochlorite (NaOCl) is titrated with 0.306 M HCl. Calculate the pH of the solution after the addition of 7.02 mL of 0.306 M HCl. Calculate the pH of the solution after the addition of 18.9 mL of 0.306 M HCl. Calculate the pH of the solution at the equivalence point with 0.306 M HCl
The pKa of a hypochlorous acid is 7.530. A 60.0 mL solution of 0.138 M sodium hypochlorite (NaOCl) is titrate with 0.319 M HCl. Calculate the pH of the solution: a) after the addition of 7.79 mL of 0.319 M HCl b) after the addition of 27.2 mL of 0.319 M HCl c) at the equivalence point with 0.319 M HCl
The pKa of hypochlorous acid is 7.530. A 56.0 mL solution of 0.112 M sodium hypochlorite (NaOCl) is titrated with 0.252 M HCl. Calculate the pH of the solution: a) after the addition of 9.16 mL of 0.252 M HCl. . b) after the addition of 26.0 mL of 0.252 M HCl. c) at the equivalence point with 0.252 M HCl.
The pKa of hypochlorous acid is 7.530. A 53.0 mL solution of 0.100 M sodium hypochlorite (NaOCl) is titrated with 0.303 M HCl. Calculate the pH of the solution a) after the addition of 6.47 mL of 0.303 M HCl. b) after the addition of 18.4 mL of 0.303 M HCl. c) at the equivalence point with 0.303 M HCl.
3] You are charged with producing a buffer with a pH 7.65, by dissolving a weighed amount of sodium hypochlorite (NaCIO, FM-74.44) in 1.5 L of 0.35 M hypchlorous acid (HOCI, pka 7.46) (a) What mass (in g) of NaCIO is required (4 points (b) What is the resulting pH if 20 mL of 0.08 M HCI is added to 80 mL of this buffer? (4 points (c) Could i make a second NaCIO/HOCl buffer with a pH = 5.0?...