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Science On Display The Chemical Change of Soda Bicarbonate and Vinegar Class Presentation

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

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  1. Science On DisplayThe Chemical Change of Soda Bicarbonate and VinegarClass Presentation By Conor Berry January 27, 2010 7-CZ

  2. 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 • 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

  3. Materials • Baking soda • Vinegar • Something to hold mixture in • Low gauge for measuring PSI • Balloon • Measuring spoon

  4. 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.

  5. Pressure Method Pressure in Kilograms per Square Centimeter Due to Baking Soda - Vinegar Mixture

  6. Balloon Method Balloon Circumference in Millimeters Due to Baking Soda - Vinegar Mixture

  7. 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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