A student is conducting molecular weight determination of an unknown diprotic acid. He first prepared a 250 mL NaOH (39.997 g/mol) titrant solution, which he then standardized with 0.5830 g of KHP (204.22g/mol) which consumed 24.02 mL of the titrant. After standardization, he weighed 0.2108 g of unknown diprotic acid and the titration reached the endpoint at a volume of 21.58 mL. (a) What is the standardized concentration of the titrant? Choices: 0.1000 M 0.1189 M 0.1286 M 0.1419 M (b) What is the molar mass of the diprotic acid? Choices: 82.19 g/mol 137.68 g/mol 164.38 g/mol 195.37 g/mol
A student is conducting molecular weight determination of an unknown diprotic acid. He first prepared a 250 mL NaOH (39.997 g/mol) titrant solution, which he then standardized with 0.5830 g of KHP (204.22g/mol) which consumed 24.02 mL of the titrant. After standardization, he weighed 0.2108 g of unknown diprotic acid and the titration reached the endpoint at a volume of 21.58 mL. (a) What is the standardized concentration of the titrant? Choices: 0.1000 M 0.1189 M 0.1286 M 0.1419 M (b) What is the molar mass of the diprotic acid? Choices: 82.19 g/mol 137.68 g/mol 164.38 g/mol 195.37 g/mol
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter16: Reactions Between Acids And Bases
Section: Chapter Questions
Problem 16.103QE: A bottle of concentrated hydroiodic acid is 57% HI by weight and has a density of 1.70 g/mL. A...
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A student is conducting molecular weight determination of an unknown diprotic acid. He first prepared a 250 mL NaOH (39.997 g/mol) titrant solution, which he then standardized with 0.5830 g of KHP (204.22g/mol) which consumed 24.02 mL of the titrant. After standardization, he weighed 0.2108 g of unknown diprotic acid and the titration reached the endpoint at a volume of 21.58 mL.
(a) What is the standardized concentration of the titrant?
Choices:
0.1000 M
0.1189 M
0.1286 M
0.1419 M
(b) What is the molar mass of the diprotic acid?
Choices:
82.19 g/mol
137.68 g/mol
164.38 g/mol
195.37 g/mol
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