Determination of known acid concentration Trial 1 Trial 2 Trial 3 Volume of acid used (mL) 25 mL HCl 25 mL HCl 25 mL HCl Initial buret reading (mL) 50 mL 50 mL 50 mL Final buret reading (mL) 30 .7 mL 31.1 mL 29.3 mL Volume of NaOH used (mL) 50 mL 50 mL 50 mL Molarity of NaOH Calculated Molarity of HCl Show a sample calculation of HCl molarity Average concentration of HCl from Trials 1,2, and 3 The “true” concentration of HCl is 0.10 M. The calculated average concentration of HCl is ______________M. The % error is = (???? − ?????)/????? ? 100
Determination of known acid concentration Trial 1 Trial 2 Trial 3 Volume of acid used (mL) 25 mL HCl 25 mL HCl 25 mL HCl Initial buret reading (mL) 50 mL 50 mL 50 mL Final buret reading (mL) 30 .7 mL 31.1 mL 29.3 mL Volume of NaOH used (mL) 50 mL 50 mL 50 mL Molarity of NaOH Calculated Molarity of HCl Show a sample calculation of HCl molarity Average concentration of HCl from Trials 1,2, and 3 The “true” concentration of HCl is 0.10 M. The calculated average concentration of HCl is ______________M. The % error is = (???? − ?????)/????? ? 100
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter13: Acids And Bases
Section: Chapter Questions
Problem 98QAP: Consider the following six beakers. All have 100 mL of aqueous 0.1 M solutions of the following...
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- Determination of known acid concentration
|
Trial 1 |
Trial 2 |
Trial 3 |
|
|
Volume of acid used (mL) |
25 mL HCl |
25 mL HCl |
25 mL HCl |
|
Initial buret reading (mL) |
50 mL |
50 mL |
50 mL |
|
Final buret reading (mL) |
30 .7 mL |
31.1 mL |
29.3 mL |
|
Volume of NaOH used (mL) |
50 mL |
50 mL |
50 mL |
|
Molarity of NaOH |
Calculated Molarity of HCl
Show a sample calculation of HCl molarity
Average concentration of HCl from Trials 1,2, and 3
The “true” concentration of HCl is 0.10 M. The calculated average concentration of HCl is ______________M.
The % error is = (???? − ?????)/????? ? 100
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