Write the properly balanced chemical equation for the reaction between vinegar (acetic acid) and sodium hydroxide.
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Question:
- Write the properly balanced chemical equation for the reaction between vinegar (acetic acid) and sodium hydroxide.
- Uncertainty: is the range of possible values within which the true value of the measurement lies. All measurements are subject to some uncertainty. Uncertainty in equipment is accounted for by the use of + . For example a reading of 11 + 1 means the "true value" is between 10 and 12. The uncertainty of a measuring instrument in a chemistry lab is estimated as plus or minus half the smallest increment on the equipment. For instance if a thermometer has a mark every 10C then the uncertainty is +0.50C so if a chemist reads a value of 240C it should be written down as 24.0 + 0.50C (note the reading lines up with the uncertainty). Mechanical/Electrical devices have uncertainty that is listed when the equipment is bought.
- Table #1 - Uncertainty Values for Copper Cycle Reaction:
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- Procedure (for titration):
- Watch the following video for the procedure of titration of acetic acid with NaOH.
- This is a two part experiment. Vinegar titration
- Observations:
- Fill in the following tables:
- Part A: Standardization of NaOH:
- Table #1 - Titration of KHP vs NaOH:
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- Table #2 - Titration of vinegar vs NaOH
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- Part A: Calculation of the Molarity of the NaOH:
- 1. Which trials will you NOT use and why?
- 2. Fill in the following table:
- Table #3 - Part A Calculations:
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- 3. Which trials will you NOT use and why?
- 4. Fill in the following table:
- Table #4 - Part B Calculations:
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- Questions:
- 1. Why should you always pour into a burette at "stomach level" rather than above your head?
- 2. The following is a chart of the molar concentrations of acetic acid in commercial vinegars:
- Table #5 - Concentrations of Commercial Vinegars:
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- What type/brand of vinegar was titrated in this experiment?
- What do you notice about pickling vinegar? Why do you think this is the case?
- 2. Most shampoos are basic. Why do some people rinse their hair with vinegar after washing it?
Related Book For
Principles Of Accounting Volume 1 Financial Accounting
ISBN: 9781593995942
1st Edition
Authors: Mitchell Franklin, Patty Graybeal, Dixon Cooper, OpenStax
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