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
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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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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