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A monoprotic acid (Ka = 4.31 x 10-5) has a partition coefficient of 4.4 in favor of octanol) when distributed between w...
A monoprotic acid (Ka = 4.31 x 10) has a partition coefficient of 4.4 (in favor of octanol) when distributed between water and octanol. Find the concentration of the acid in the octanol when 100 mL of 0.10 M aqueous solution of the acid is extracted with 27 mL of octanol at pH 9.00. a. 0.010 M b. 0.0000276 M OC. 0.00001 M d.0.099 M
A monoprotic acid, HA, with a K of 3.43 x 10 has a partition coefficient of 2.83 (favoring octanol) when distributed between water and octanol. Find the formal concentration of the acid in each phase when 100 mL of 0.100 M aqueous acid is extracted with 25 mL of octanol at pH 4.00 and pH 9.00. pH 4.00, in water: 0.0655 M pH 4.00, in octanol: 0.0345 pH 9.00, in water: 0.0910 M pH 9.00, in octanol: 0.900
A monoprotic acid, HA, with a Ka of 6.67 × 105 has a partition coefficient of 4.0 (favoring octanol) when distributed between water and octanol. Find the formal concentration of the acid in each phase when 100 mL of 0.100 M aqueous acid is extracted with 25 mL of octanol
Weak Acid Titration When a 14.0 mL sample of a monoprotic weak acid is titrated with 0.10 M NaOH, it generates the titration curve shown below. Weak Acid titrated with 0.10 M NaOH pH Volume of 0.10 M NaOH a) What is the molar concentration of the original sample of weak acid? х М b) What is the ka for this weak acid?
A) The Ka of a monoprotic weak acid is 2.29 × 10-3. What is the percent ionization of a 0.129 M solution of this acid? I got 104.8% which I know is impossible. B) The Ka value for acetic acid, CH3COOH(aq), is 1.8× 10–5. Calculate the pH of a 2.40 M acetic acid solution. C) Calculate the pH of the resulting solution when 4.00 mL of the 2.40 M acetic acid is diluted to make a 250.0 mL solution. I...
When 10.00 mL of 0.240 M HX (Ka = 4.31 10-5) is titrated with 0.120 M KOH, the pH will increase. Calculate the pH of the solution at each point in the titration. The pKw is 14.000 at this temperature. Volume of KOH (mL) pH 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 20.00 22.00 24.00 26.00 28.00
1) Chloropropionic acid, ClCH2CH2COOH is a weak monoprotic acid with Ka = 7.94 x 10-5 M. Calculate the pH at the equivalence point in a titration 40.4 mL of 0.49 M chloropropionic acid with 0.9 M KOH. 2) What is the pH after 22.90 mL of NaOH are added?
A mixture contains benzoic acid, a monoprotic acid (Ka = 6.28 x 10-5, 0.250 M), and sodium benzoate (0.400 M). 500 mL of this buffer were treated with 250 mL of a NaOH solution whose pH was 12.875. What should the pH be after addition of the base?
Chloropropionic acid, CICH2CH2COOH is a weak monoprotic acid with Ka = 7.94 x 10-5 M. Calculate the pH at the equivalence point in a titration 48.7 mL of 0.39 M chloropropionic acid with 0.7 M KOH. Answer: Indicators of Phenolphthalein is a commonly used indicator that is colorless in the acidic form (pH < 8.3) and pink in the basic form (pH > 10.0). It is a weak acid with a pka of 8.7. What is the ratio of the...
1. A weak monoprotic acid has molar mass 180 g/mol. When 1.00 g of this acid is dissolved in enough water to obtain a 300 mL solution, the pH of the resulting solution is found to be 2.62. What is the value of Ka for this acid? 2. A weak monoprotic acid has pKa = 3.08. Calculate the percent ionization of a 0.35 M solution of this acid. 3. Calculate the pH of a solution that is 0.050 M in CH3COOH...