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Science On Display The Chemical Change of Soda Bicarbonate and Vinegar Class Presentation. By Conor Berry January 27, 2010 7-CZ. Research. Hypothesis. Baking soda is sodium bicarbonate Vinegar is a weak acid When the two components are combined they make a strong rising of fizz

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science on display the chemical change of soda bicarbonate and vinegar class presentation

Science On DisplayThe Chemical Change of Soda Bicarbonate and VinegarClass Presentation

By Conor Berry

January 27, 2010

7-CZ

hypothesis
ResearchHypothesis
  • Baking soda is sodium bicarbonate
  • Vinegar is a weak acid
  • When the two components are combined they make a strong rising of fizz
  • This is a multistep reaction
  • The sodium bicarbonate mixes with the acid to create carbon dioxide and water
  • I believe that the higher the ratio of vinegar to baking soda the better the result
materials
Materials
  • Baking soda
  • Vinegar
  • Something to hold mixture in
  • Low gauge for measuring PSI
  • Balloon
  • Measuring spoon
procedures
Procedures
  • Pressure Method
    • Measure vinegar and baking soda.
    • Pour each into my device and seal them.
    • Shake container to mix vinegar and baking soda.
    • Read psi gauge to measure the amount of pressure.
    • Record pressure observed on log and graph.
    • Repeat for each vinegar / baking soda combination.
  • Volume Method
    • Measure vinegar and baking soda.
    • Pour each into my device and seal them.
    • Shake container to mix vinegar and baking soda.
    • Measure circumference of the balloon with string.
    • Record circumference observed on log and graph.
    • Repeat for each vinegar / baking soda combination.
slide8
Balloon Method Balloon Circumference in Millimeters Due to Baking Soda - Vinegar Mixture
conclusions
Conclusions
  • My hypothesis was that the higher the ratio of vinegar to baking soda the better the result.
  • I tested my hypothesis using two methods.
    • the pressure methods using a pressure gauge
    • the volume method measuring the circumference of a balloon
  • The reactions were the same for both methods.
  • The more baking soda and the more vinegar the greater the reaction and the more gas.
  • In my mind my hypothesis was correct.
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