Baking Soda and Vinegar Lab
Question: How does the amount of baking soda affect the reaction time when mixed with vinegar?
Research:
Hypothesis:
From research conducted, the more amount of baking soda the longer the reaction time.
IV: Amount of baking soda
DV: Reaction time
Control Group: Same amount of vinegar used each of time.
Materials:
Methods:
Data Table:
Research:
- This reaction produces water and carbon dioxide.
- Carbon dioxide is what makes soda fizzy and bubbly, which is why you see lots of bubbling and foaming when you mix baking soda and vinegar together.
- The clues of a chemical reaction are production of a gas, change in temperature, color change, production of a precipitate.
- If more energy is required to break the bonds than is released when new bonds are formed, the reaction is endothermic.
Hypothesis:
From research conducted, the more amount of baking soda the longer the reaction time.
IV: Amount of baking soda
DV: Reaction time
Control Group: Same amount of vinegar used each of time.
Materials:
- Baking Soda
- Vinegar
- Measuring cup
- Timer
- Covered Surface (this is a messy process)
Methods:
- Initially start off with a 1/2 a cup of vinegar in a pot big enough for an eruption
- Measure 1/8, 1/4, or 1/2 of baking soda in a separate measuring cup
- Have your timer ready and pour in the baking soda
- Time the reaction (the eruption)
- Repeat this trial 3 times
- Record you results
Data Table:
Graph:
Analysis: The graph represents three trials of each amount of baking soda along with an average. On average 1/2 of a cup baking soda had the longest reaction time. On average 1/8 of a cup baking soda had the shortest reaction time.
Conclusion:
Claim: 1/2 a cup of baking soda has the longest reaction time.
Evidence: Three trials were conducted for each cup amount, and at the end I calculated each of the averages. The average reaction time for 1/8 of a cup of baking soda was 3.84 seconds. The average reaction time for 1/4 of a cup of baking soda was 4.3 seconds. For 1/2 a cup of baking soda the reaction time was 4.95 seconds. In conclusion, the average fastest time was for the 1/2 cup of baking soda.
Reasoning: My hypothesis was that the more amount of baking soda the longer the reaction time would be, which was was proven correct in my experiment. From my research I can conclude that the more baking soda the longer the reaction time, because if more energy is required to break the bonds than is released when new bonds are formed. So, the more energy (baking soda) the more new bonds are formed causing a longer reaction time. This piece of research was proven correctly in my experiment, because the more baking soda I added the longer the reaction time would be. This experiment was slightly altered because of uncontrollable events. My had wasn't able to hit the timer at the exact end of the reaction. The measurements were done well, but because the human eye is not perfect sometimes the measurements were not on the dot. These variables were kept as constant as possible, for they could not be kept perfect. Overall from this experiment I can conclude that the more baking soda when mixed with a constant amount of vinegar, the longer the reaction will be.
Citations:
Conclusion:
Claim: 1/2 a cup of baking soda has the longest reaction time.
Evidence: Three trials were conducted for each cup amount, and at the end I calculated each of the averages. The average reaction time for 1/8 of a cup of baking soda was 3.84 seconds. The average reaction time for 1/4 of a cup of baking soda was 4.3 seconds. For 1/2 a cup of baking soda the reaction time was 4.95 seconds. In conclusion, the average fastest time was for the 1/2 cup of baking soda.
Reasoning: My hypothesis was that the more amount of baking soda the longer the reaction time would be, which was was proven correct in my experiment. From my research I can conclude that the more baking soda the longer the reaction time, because if more energy is required to break the bonds than is released when new bonds are formed. So, the more energy (baking soda) the more new bonds are formed causing a longer reaction time. This piece of research was proven correctly in my experiment, because the more baking soda I added the longer the reaction time would be. This experiment was slightly altered because of uncontrollable events. My had wasn't able to hit the timer at the exact end of the reaction. The measurements were done well, but because the human eye is not perfect sometimes the measurements were not on the dot. These variables were kept as constant as possible, for they could not be kept perfect. Overall from this experiment I can conclude that the more baking soda when mixed with a constant amount of vinegar, the longer the reaction will be.
Citations:
- "Rocketology: Baking Soda Vinegar = Lift Off!" Rocketology: Baking Soda Vinegar = Lift Off! N.p., n.d. Web. 01 Apr. 2013.
- "A Simple Baking Soda and Vinegar Experiment." YouTube. YouTube, 24 Oct. 2011. Web. 01 Apr. 2013.