Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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PRELAB QUESTIONS
NAME nieLe uer
1. A 4.00 mL sample of vinegar (active ingredient, acetic acid) was titrated with 0.1250M
NaOH according to the following equation:
HC2H3O2 + NaOH
NaC2H3O2 + HOH
25.19 mL of base was needed to reach the end point. Calculate the molarity of the acetic
acid
2.
Calculate the grams of acetic acid in one liter of the vinegar.
The 4.00 mL sample of vinegar had a mass of 4.056 g. Calculate the grams of vinegar in
one liter.
3.
4. Calculate the % acetic acid in the vinegar.
g acetic acid x 100
g vinegar
1
% acetic acid
95
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Transcribed Image Text:PRELAB QUESTIONS NAME nieLe uer 1. A 4.00 mL sample of vinegar (active ingredient, acetic acid) was titrated with 0.1250M NaOH according to the following equation: HC2H3O2 + NaOH NaC2H3O2 + HOH 25.19 mL of base was needed to reach the end point. Calculate the molarity of the acetic acid 2. Calculate the grams of acetic acid in one liter of the vinegar. The 4.00 mL sample of vinegar had a mass of 4.056 g. Calculate the grams of vinegar in one liter. 3. 4. Calculate the % acetic acid in the vinegar. g acetic acid x 100 g vinegar 1 % acetic acid 95
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