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A 20.00-ml sample contains 2.39 g of KHC, H,O,, known as KHP. This sample is used to standardize an NAOH solution. At the equivalence point, 46.50 mL of NAOH have been added. K.(HC H,O,) = 3.9 × 10-" Indicators that change color within the pH range: bromothymol blue 6.0-7.7 phenolphthalein 8.3- 9.8 alizarin yellow R 10.0 12.0 a. What was the concentration of the NaOH? Concentration - b. What is the pH at the equivalence point? PH c. Which indicator, bromothymol blue, phenolphthalein, or alizarin yellow R, should be used in the titration? bromothymol blue phenolphthalein alizarin yellow R Try Another Verslon 3 item attompts remaining

A 20.00-ml sample contains 2.39 g of KHC, H,O,, known as KHP. This sample is used to standardize an NAOH solution. At the equivalence point, 46.50 mL of NAOH have been added. K.(HC H,O,) = 3.9 × 10-" Indicators that change color within the pH range: bromothymol blue 6.0-7.7 phenolphthalein 8.3- 9.8 alizarin yellow R 10.0 12.0 a. What was the concentration of the NaOH? Concentration - b. What is the pH at the equivalence point? PH c. Which indicator, bromothymol blue, phenolphthalein, or alizarin yellow R, should be used in the titration? bromothymol blue phenolphthalein alizarin yellow R Try Another Verslon 3 item attompts remaining

General Chemistry - Standalone book (MindTap Course List)
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter16: Acid-base Equilibria
Section: Chapter Questions
Problem 16.123QP: A 25.0-mL sample of hydroxylamine is titrated to the equivalence point with 35.8 mL of 0.150 M HCl....
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A 20.00-mL sample contains 2.39 g of KHC, H,O4, known as KHP, This sample is used to standardize an NaOH solution. At the equivalence point, 46.50 mL of NAOH have been added. K. (HC;H4O,-) = 3.9 × 10- Indicators that change color within the pH range: bromothymol blue = 6.0 - 7.7 phenolphthalein = 8.3 -9.8 alizarin yellow R 10.0- 12.0 a. What was the concentration of the NaOH? Concentration = M b. What is the pH at the equivalence point? pH = c. Which indicator, bromothymol blue, phenolphthalein, or alizarin yellow R, should be used in the titration? bromothymol blue phenolphthalein alizarin yellow R Try Another Verslon 3 item attempts remalning
Transcribed Image Text:A 20.00-mL sample contains 2.39 g of KHC, H,O4, known as KHP, This sample is used to standardize an NaOH solution. At the equivalence point, 46.50 mL of NAOH have been added. K. (HC;H4O,-) = 3.9 × 10- Indicators that change color within the pH range: bromothymol blue = 6.0 - 7.7 phenolphthalein = 8.3 -9.8 alizarin yellow R 10.0- 12.0 a. What was the concentration of the NaOH? Concentration = M b. What is the pH at the equivalence point? pH = c. Which indicator, bromothymol blue, phenolphthalein, or alizarin yellow R, should be used in the titration? bromothymol blue phenolphthalein alizarin yellow R Try Another Verslon 3 item attempts remalning
(References) What is the pH at the equivalence point when 56 mL of 0.250 M hydroxylamine is titrated with 0.160 M HC1? K, (hydroxylamine) = 1.1 x 10-8 PH = Submit Answer Try Another Verslon 3 item attempts remaining
Transcribed Image Text:(References) What is the pH at the equivalence point when 56 mL of 0.250 M hydroxylamine is titrated with 0.160 M HC1? K, (hydroxylamine) = 1.1 x 10-8 PH = Submit Answer Try Another Verslon 3 item attempts remaining
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