Testing And Analyzing The Quality Of Water

The purpose of this experiment is to determine an unknown concentration of acid (hydrochloric acid) with a standard solution of a base (sodium carbonate) using titration method.

The results for the “Total Hardness” test varied between 20 ppm -128 ppm. The “Total Alkalinity” results varied between 28 ppm – 84 ppm. The results for the “Iron” test were between 0 ppm – 1 ppm. For the “Chloride” the results were as low as 20 ppm and went all the way to 8,000 ppm, but for most part the results were from 20 ppm – 60 ppm. The “Color in Water Low Range” test showed that the max APHA Color was 20 and the lowest APHA Color was 0, which is a great result. Results for the “Turbidity Column” test were Not Applicable (N/A). For both the “Chromate” and “Copper” test the results were 0 ppm. The results for “Zinc” varied between 0 ppm – 2

ii. The second part of the titration series involves titration of NaOH with Hydrochloric acid (HCL). Again, three reps of titration and a blank titration have to be completed. A volumetric pipet is used to measure 10.00mL of HCL into three labeled conical flasks. Then the flasks are filled with deionized water until about the 50mL mark. A buret is

iii. Materials: Distilled water, beverages (juice, soda, sport drinks), Sugar reference solutions (0, 5, 15, ad 20%) 25ml each, Balance, centigram(0.01g precision), Beaker (100-mL), Erlenmeyer flask (125-mL to collect rinse solutions), Pipet(10-mL), Pipet bulb or pipet filler

In the experiment we were determining the chemical formulas for the hydrated, and dehydrated samples. The purpose of this was to asses our knowledge of chemical formulas, and how they relate to each other.

This study concentrated specifically on eight potential indicators of poor water quality, including color, turbidity, chloride, total hardness iron, phosphate, nitrate, and pH. Of these parameters, nitrate is the only MCL substance, the remaining seven are considered SMCL's, and were measured strictly for aesthetic purposes. The composition of two water samples, yielding from sources of different regulation, was studied to develop a better understanding of contamination prevalence. The first sample was collected from a drinking water fountain found inside the Natural and Environmental Sciences (NES) building. This water is treated and cleaned after being extracted from the Floridian Aquifer. The second was taken from the edge of a pond in Simmons Park, found on campus. This water source intercepts significant surface runoff and works as a retention basin for the surrounding area. Before conducting the experiment, it was expected that the NES water fountain would provide a sample more in compliance to the MCL and SMCL standards set by the EPA when compared to the Simmons Park Pond water. It is likely that the color and turbidity of the pond water will yield higher measurements than the NES drinking water. This was predicted to be the result, as the NES drinking water comes from a source of

That is why it is of the utmost important to check the effectiveness of a hiker’s equipment. Water purification is the most important thing to have while out hiking in the backcountry. A real world scenario was the only way of being able to properly tell whether or not the Iodine tablets could be counted upon, when they are the only thing being used for water remediation. The lab procedure start by taking a river water sample from the Menomonee River, which was then separated into three 1L beakers which were then filled to the range of .95L to 1L. The water samples as is, were then swabbed for bacteria, and rubbed across a Tryptic Soy Agar plate (TSA), to facilitate growth of bacteria if any was present in the water. The water was then treated with the drinking water tablets per their instructions, and was then swabbed again for bacteria after the 35 minute mark. This second swab was then also streaked across a TSA plate in order to check if there was any bacteria still present in the water. The previous methods were also performed concurrently with three identical amounts of water from the city of Milwaukee tap water. This was done to account for any bacteria that could have entered the water from the air, due to the open air beakers. The bacteria, if present on the TSA plates, were then allowed to grow over several days, and the resulting bacteria colonies were then counted, and purification levels were compared between the drinking water tablets and the treated city

1 Q-tip was then swirled around in the water in a test tube for each different type of water for 1 minute and the Q-tip was observed for any changes in color. The Q-tip was then rinsed by tap water from the sink as instructed by the kit’s instructions and properly disposed of. This was done for all the different types of water in both environments. Then for the tap water in both environments, bacteria was tested using the test kits. Using a dropper pipette provided by the kit, water was collected, and placed into a vial that contained a solution known as ‘purple reagent’ at the bottom. The vial was gently swirled and then placed on a table for 5 minutes and was undisturbed. The vial was then swirled again and a test strip that was also provided by the kit was placed into the test vial with the arrows on the test strip point down. The vial was undisturbed for 10 minutes, and the test strip was then observed for reddish lines within 1 minute after the 10 minutes. The test strip, vial, and dropper pipette were not rinsed, and were properly disposed of after

In order to assess the water quality of Farm Pond the class collected a variety of data. The class

poured into a clean 100 mL beaker. To dilute the buffer 12.5 mL of DI water was added to the

The significance of titration is to find out the concentration of unknown substances. There are different kinds of titration and this experiment consists of two kinds of titration. The traditional titration uses the phenolphthalein indicator dye to determine the concentration by color change. The modern titration uses pH electrodes. The chemical reaction “H3C6H6O7(aq)+3OH-(aq)→3H2O(l)+C6H5O7(aq)” is used to determine the moles of citric acid from the moles of NaOH. The main scientific objective of the experiment is to determine the molarity of two different sodas by traditional titration and modern titration respectively.

The first step in this experiment was to construct a titrator and prepare the corresponding lab materials. After assembly and placement of the titrator it was filled with 10 mL of EDTA. To rid the titrator of air bubbles a few drops of EDTA were released before conducting the experiment. The next step in the experiment was to prepare the tap water and solution of pH 10 and EBT indicator powder. The 100 mL beaker was filled with 10 mL of tap water in addition to 5 drops of pH 10 buffer and approximately 10 mm of EBT indicator powder, which was placed below the

In this lab, the pH scale was used to determine which waters are most healthy to drink. The term ph means potential hydrogen. It is a measure of the hydrogen ion concentration when talking about a solution. If a solution has a high concentration of hydrogen ions, it will have a low pH and solutions with a low concentrations of H+ ions will result in a high pH. pH is a very well known water test to ensure that the water is healthy to drink. pH reveals the water’s acidity and it is a measurement of the potential activity of hydrogen ions. The pH scale is from 0 to 14. If one has a pH of 7.0 that is considered neutral. Solutions with a pH below 7.0, are considered acids. Solutions above 7.0 are considered basic. The purpose of this lab is to conduct

Water quality describes the condition of the H¬2¬O, including chemical, physical, and biological characteristics. The water quality test that are generally carried out are pH, turbidity, temperature, dissolved oxygen, dissolved phosphate and nitrate. Dissolved oxygen refers to the level of free present in H¬2¬O. It is an important parameter in assessing water quality because of its influence on the organisms living within a body of H¬2¬O. Dissolved oxygen is oxygen gas molecules (O2) present in the water. Generally, oxygen is spread through diffusion, which is determined by many factors including temperature of water, rapids, falls, time, climate and altitude. For example, a stagnant H¬2-O will have less dissolved oxygen than a fast flowing

The city of Long Beach has approximately 7 miles of public beaches all through out the city. Due to the mild climate thousands of residents and tourists visit the beaches and bays. The beaches are one of the cities most popular attractions; so this raises the concern of what the water quality is like at the beaches and bays. Roughly every week the Health Department’s Environmental Health Water Quality Monitoring Program collects samples of water and analyzes them to determine the quality of the water. Many different factors effect the water quality in Long Beach, the geographical location of the city, the man made structures, the urban runoff, and the Port of Long Beach. All of these things change and or make the water quality worse in Long Beach but there are ways in which it can be improved.