Overall, the results mainly do support the original hypothesis. Throughout the 8 days of experiment, there was no lead, bacteria, or sodium detected by the test kits or the test strips that were used in any of the waters of the water bottle brands and tap water in both environments thus proving the hypothesis that was originally posed, correct. This was the same for the tap water from Quincy, Massachusetts in both environments, thus not supporting the original hypothesis of the belief of traces of lead or bacteria in the tap water of Quincy. However, the original pH estimates for the different types of water were not correct. The hypothesis about how pH balance would decrease in the cooler environment and increase in the warmer environment …show more content…
All of the types of water began with the same amount in both environments; 25 mL of water. Along with the pH changes, the estimates of the pH of each type of water was not correct for the most part. The hypothesis for the pH at room temperature was mainly incorrect. The hypothesis was that Fiji would have a neutral pH of 7, 7/11’s spring water would be slightly acidic, Quincy’s tap water would be slightly basic along with Poland Springs and Aquafina. The hypothesis was mostly proven wrong. Fiji’s water was slightly basic with a pH of 7.8, 7/11’s water was slightly acidic at a pH of 6.2, Quincy’s Tap Water was not slightly basic, but slightly acidic at a pH of 6.7. (Quincy’s tap water was the closest to the neutral pH of water that is 7.0) Poland Springs’ pH along with Aquafina was not basic, however they were both slightly acidic. Poland Spring’s pH was 6.5, and Aquafinia’s pH was 6.6. However, something that was observed and considered intriguing was how the amount of evaporation that occurred was not the same for each type of water, and it certainly was not the same in the different …show more content…
A color code was used to tell what the pH of the water was. For example, if the pH was 6, the pH test paper would turn into the color yellow, and if the pH was 7, the pH test paper would be a light green. Identifying the pH based on color could have slight human error as the pH could actually be 6.8, but when the pH of the water was tested, it could have been seen as a light green instead of a darker yellow green, thus the pH would be identified as 7 instead of the proper 6.8. Another issue that could’ve been caused from human error was that when measuring the amount of water by using a graduated cylinder, it could’ve been measured a slight bit off. Originally, the amount of water that was used for testing was 25mL. However, when measuring the amount of water, the water could’ve been 24.9 mL instead of 25mL due to the miniscus being formed and where the meniscus was believed to be. This would cause the amount of water being tested not the same for all the types of waters. Another issue that could’ve affected the result was that the refrigerator that held the test tubes that were in the cooler environment was frequently
Imagine in 5 years time stepping outside to get in your car and you are being attacked by plastic bottles! Yes its true plastic bottles are taking over land fills everywhere on the planet.
The purpose of the experiment was to test the levels of water contamination in each beaker to see how high each vial would contaminate the water based on the color the water became once each vial was poured into the given beakers. In Experiment 2: Water Treatment, I used potting soil, sand, activated charcoal, gravel, alum, bleach, and beakers with my own-supplied tap water. The purpose of this experiment was to see if the different particles placed in the tap water could be removed by various filtration techniques. In Experiment 3: Drinking Water Quality, I used several various test strips, each individual strip testing for ammonia, chloride, 4-in-1, phosphate, and iron, along with samples of Disanti bottled water, Fiji bottled water, and my own tap water from home. The purpose of this experiment was to determine if bottled water is any more or less filtrated than my own tap water at home.
12. For standard water temperature was conducted in such a way that the test tube with Hydrochloric Acid was placed inside the water to sit until the Hydrochloric Acid adjusted to the temperature of the water.
The samples of unfiltered Rio Salado River water used in these experiments were collected from a site on the south bank of the river near S. 7th Ave. in Phoenix Arizona (see figure 1). The samples of water were collected by filling a three-gallon carboy by submerging it in the river. The carboy was then transported at ambient air temperature to the lab the same day it
Abstract: During this lab, the pH of water in soil from a man made garden, a deciduous forest, and a river bank were tested after leaving it in containers for one, two, and three hours, coming out to a total of three trials with three different soils all together. After testing the pH of the water when being added to the soil for the desired amount of time and comparing it to the original water with no soil added, is then when each pH difference was observed and recorded in a a notebook, while pictures were taken of the experiment being conducted.
To improve the results from the experiment buffer solutions that were not whole pHs could have been used e.g. pH 4.5, 5.5 etc. This would have provided more reliable results as a wider range of results would have been produced. Using pHs with decimals would also help to more accurately determine the optimum pH as the optimum may have been above or below the pH stated in the hypothesis; 8. In this experiment however the optimum is taken at 8 because the graph does not rise again.
Did you know that tap water that is supposed to be safe these days actually may contain many contaminants? People typically do not ask because most of them already think it is okay to drink because they always drink it. However, the truth is that it contains multiple contaminants. They can soon build up and hurt your body. Only good filters can prevent this from happening. Water in water fountains will stay contaminated unless people learn about the effects of contaminated water and try to put an end to it.
Based on the results of your experiment, what major differences, if any, do you notice between the Dasani, Fiji, and tap water?
The problem that needed to be solved for this experiment was, “How are organisms able to survive and function with proficiency despite metabolic activities that have the disastrous ability to alter pH from a neutral to an acidic or basic environment?” This question needed to be answered by testing different biological materials, as well as tap water, in order to find out what allows modern day organisms to survive such hazardous conditions. A hypothesis that was formulated before experimenting was, “If type of substance is Tap Water, then the changes in pH will be more drastic because water, considered neutral on the pH scale, doesn’t contain a component that will prevent such a change, unlike the content of a buffer solution.” The independent variable for this experiment was type of substance, evidently because this was the part of the experiment that was constantly being changed from trial to trial. The dependent variable for this experiment was pH of the substance because the pH constantly changed depending on the type of substance was being experimented with. The control of this experiment was the tap water and buffer solutions, as the results of the data from the biological materials were constantly compared to the data from both of these solutions.
The group placed it in the comparator after mixing and also hold it up to the sun. We rotated the disc to obtained color match and then multiplied the reading by 4.4. Observations drawings about both pounds were made throughout the sampling period, and through Professor Bowler. Salinities and Conductances were taken by the Professor and were given to us at a later time. Afterward, we also collected 5lb of water in a bucket from the ponds and pour it through a net to see if we can find anything. In Pond 5 we only fond a pebble and we found nothing in Pond
Develop a hypothesis on which water source you believe will contain the most and least contaminants.
6 groups each collected a sample of surface water from the wetland and the lake in various areas. Back at the lab, measurements were made and analyzed the data. We had 23 samples of water slides from the samples of water collected from each location. We examined the drops of water from each location under a microscope and counted all the microorganisms we could find and recorded them in Microsoft Office Excel. After looking at the water samples under a microscope, we tested the pH level of 6 samples from each location of water with a Vernier pH probe and recorded this data in Excel. The number of microorganisms found in the recorded was analyzed using a statistical chi-squared test and the pH levels recorded was analyzed using a t-test.
Tap water is healthier for you and the environment. People always say the bottled water has a better taste and better value than just regular tap water. Why do others say that tap water is bad for you because off all the germs and bacteria that can get inside of your tap water faucets. I believe that people are wrong about bottle water.
The objective of this experiment is to see how safe bottled and tap water is to drink based on what is in the water; specifically the contaminants and the pH balance of the water. As well as if the temperature of the environment that the water is placed in affects the pH balance of the water along with if bacteria is grown due to the condition it is in. Water is one of the most important things in life, being as it is known as the universal solvent, and humans and many other animals need it to survive. Along with water, the balance of pH is also extremely important in the maintenance of any organism 's life, including the lives of humans. Temperature is known to affect the speed of movements of ions within a solution. There are specific
My hypothesis was supported because there were some contaminants that were visible and there were some that were not visible. One of the contaminants that was visible with sample c was copper which was orange. Copper is an orange/red metal and it can be found in small amounts (less than 1 parts per million) in natural, ground, and surface water. However, elevated amounts may occur if corrosive water completely gets dissolved with copper water. This will only happen if corrosive water stays unmoving with copper water for six or more hours which will likely make the water more unsafe for drinking. It will be more unsafe for drinking because it can give a bitter taste and can cause discoloration in the water. Copper is also a contaminant that