html Hypothesis: If you add soap to water‚ than it will decrease the effect on the surface tension. Procedure: Control: Is the tap water Independent Variable: Is the soap Dependent Variable: Is the drops of soap you fit on the penny 1. I received a beaker filled with tap water. 2. I took a pipette and filled it up with water from the beaker. 3. I began
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that has the same or more chemical contaminants as our tap water. This experiment allowed me to test and see for myself just how true this really
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bottled water? Yes‚ bottled water is convenient. Many people argue that bottled water is better than tap water simply because it’s easily transported and the convenience of it in most locations. No matter where you go‚ most businesses‚ truck stops‚ schools‚ zoos‚ etc. have vending machines or coolers that offer bottled water. The problem is‚ not only are these bottles basically filled with tap water‚ companies are also charging nearly $1.50 to give it to consumers. Some places even charge $3.00
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with soap the polar bonds which help to bind the water together are weakened‚ thus lessening the surfacetension. Materials: pipette‚ liquid soap‚ water‚ beakers‚ penny‚ graduated cylinder‚ paper towels. Procedure: 1. I received a beaker filled with tap water. 2. I took a pipette and filled it upwith water from the beaker. 3. I began to add drops of water to a penny‚ which was headsup‚ every one second from a height of ½ centimeter and counting how many drops I had put on it. 4. After I added the drop
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I predict that once the contaminated water is treated and filtered that it will leave me with less contamination or none at all. Then for the last experiment‚ I will determine the difference between bottled water and tap water to discover any contamination. I predict that the tap water will be the most contaminated and with the most chemicals in it‚ while the bottled waters; Dasani and Fiji will be completely filtered and free of any chemicals. Objective: The objective of groundwater sampling
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EDTA used Depending on the Sample of Water EDTA coordinated with the MgCl2 metal ions added to both samples and the hard water metal ions present in TAP water. Sample TAP Water DI Water Volume of 0.005 M EDTA used in titration 150 mL 75 mL The data in the table above was used in the determination of the calculation of metal ions in the samples of both TAP and DI water. Primarily‚ hard water consists of magnesium and calcium. Therefore the ratio of magnesium to calcium ions was inferred to be 50/50.
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Determination of the concentration of chlorine ions Aim: To compare the concentration of chloride ions in pool and tap water respectively. Background: Tap water contains a variety of dissolved ions such as Ca2+‚ Mg2+‚ Na+‚ HCO3- and Cl-. In this experiment we will determine the concentration of the Cl- ions‚ and comparing it to the concentration found in a sample of pool water. The method used is the standard one for determining the concentration of chloride ions: titration with
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Lab Report: Hard Water Purpose: The purpose of this lab is to determine whether a liquid is hard water or not. Background: Hard water is the water that has a high amount of mineral in it‚ usually Ca2+ and Mg+. These cations enter the source of water by leaching from minerals within a wet underground layer of water- bearing rock‚ or an aquifer. According to the WHO‚ hard water is not harmful to human’s health but it’s a serious problem in the water industry. Household plumbing and appliances
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in offices‚ airplanes‚ stores‚ homes and restaurants across the country. People think that bottled water is the best option for their health instead of drinking tap water because they say tap water is not completely pure. What they don’t know is that tap water is the same as drinking bottled water because industries like Nestle gives us tap water in plastic bottles. Plastic bottles contain many chemicals that damage our system by giving us different diseases. This increases the risk of people getting
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better than tap water but that not true. People tend to believe that they cannot drink any other water apart from the bottled water as they are convinced it is the safest water to drink. Question arising from this stereotype is whether these people are justified to believe in bottled water as the best and only safe water to drink and that they cannot drink any other water apart from bottled water. Bottled water demanded and highly consumed by many people around the world. Turning on the tap‚ put a glass
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