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18. What is the pH at the equivalence point when a 30.0 mL sample of 0.100 M aqueous formic acid (HCO;H) is titrated with 0.200 M aqueous potassium hydroxide? (K. of HCO;H = 1.8 x 104) a. 8.28 b. 10.26 c. 5.72 d. 2.46 e. None of these

18. What is the pH at the equivalence point when a 30.0 mL sample of 0.100 M aqueous formic acid (HCO;H) is titrated with 0.200 M aqueous potassium hydroxide? (K. of HCO;H = 1.8 x 104) a. 8.28 b. 10.26 c. 5.72 d. 2.46 e. None of these

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Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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18. What is the pH at the equivalence point when a 30.0 mL sample of 0.100 M aqueous formic acid (HCO2H) is titrated with 0.200 M aqueous potassium hydroxide? (K. of HCO,H = 1.8 x 104) a. 8.28 b. 10.26 C. 5.72 d. 2.46 e. None of these 19. What is the molar solubility of solid iron(III) hydroxide, Fe(OH)3, in a solution that is buffered to a pH of 2.50 at 25 °C? The Kap of Fe(OH)s is 6.3 x 10-38 at 25 °C. a. 6.9 x 10-28 mol/L b. 1.3 x 10-13 mol/L c. 2.0 x 10 mol/L d. 2.0 x 10-28 mol/L e. 5.0 x 10 mol/L
Transcribed Image Text:18. What is the pH at the equivalence point when a 30.0 mL sample of 0.100 M aqueous formic acid (HCO2H) is titrated with 0.200 M aqueous potassium hydroxide? (K. of HCO,H = 1.8 x 104) a. 8.28 b. 10.26 C. 5.72 d. 2.46 e. None of these 19. What is the molar solubility of solid iron(III) hydroxide, Fe(OH)3, in a solution that is buffered to a pH of 2.50 at 25 °C? The Kap of Fe(OH)s is 6.3 x 10-38 at 25 °C. a. 6.9 x 10-28 mol/L b. 1.3 x 10-13 mol/L c. 2.0 x 10 mol/L d. 2.0 x 10-28 mol/L e. 5.0 x 10 mol/L
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