time is recorded and the height. * Diffusion in solids -4 agar plates -KMnO4 crystals -methyl orange -refrigeration -ruler The experiment requires 4 plates of agar due to his transparency and the colloid that forms when mixed with water. One pair of plates is labeled 4^0 C and the second pair RT (room temperature). After taking the lids of the first pair ‚using a tooth pick‚ a small crystal of potassium permanganate is placed in the center of the of the agar and the same amount of
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Topic: Tap Water vs. Bottled Water Specific Purpose: To persuade my audience that tap water is as safe as or safer than bottled water Central Idea: With bottled advertise and claim to be from pure sources‚ tap water can have alike or better quality sources of drinking water than bottled water. INTRODUCTION Attention-getter: Bottled water has become the indispensable item in our lives. It starts the day in lunch boxes; it goes to every meeting‚ lecture hall‚ and soccer match; it ’s in the cubicles
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com/kids/stories/spacescience/water-bottle-pollution/ Tap vs. Bottled Water Bottle water versus tap water‚ which is better for our health; is a question most people find themselves conflicted on which to choose. We have a fascination with bottled water. Somehow‚ somewhere‚ someone decided the tap water was not good enough for us‚ and along came the obsession that water in a bottle was better for us. Most of us would agree that the argument for drinking bottled water is basically the taste and there
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ISE: The Determination of Chloride Unknown: #34 I. Purpose: In experiment V‚ “ISE: The Determination of Chloride”‚ the concentration of an Unknown Chloride solution‚ and the Wt% of NaCl in a sample of celery salt‚ were both determined. To determine the concentration of an Unknown Chloride solution‚ a Calibration plot is first prepared. The Calibration plot is made by first measuring a series of known concentrations of Cl- (with the same activity of the unknown solution) and obtaining
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of purified water again. Due to the people of the United States drinking billions of gallons of water daily‚ the amount of purified water we drink is starting to run out which is causing a problem already. Psychological studies have shown humans still don’t accept water being reused even after knowing the water is purified and perfectly clean. Advocates are still against ultraviolet machines being used to clean and purify water. While some people believe that drinking recycled water is both repulsive
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of the Earth is water. Roughly‚ 70 percent of an adult’s body is water. One of life’s most important necessity is water. Without it‚ no living being would be alive.Even in the first book of the bible‚ it was one of the first creations. Water is the driving force of life‚ and a big debate has begun about it‚ whether bottled or tap water is better. Tap water is better because of the reduction of waste‚ it’s less costly‚ and it’s healthier. Tap water is better than bottled water because of the reduction
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Abstract The chloride present in an unknown soluble sample was precipitated into silver chloride through precipitation gravimetry. The colloidal silver chloride originally formed was converted to a crystalline solid by controlling certain parameters of the experiment such as temperature‚ pH of the solution‚ and concentration of AgNO3. Once the solid was large enough‚ it could be washed‚ filtered‚ and weighed. The percentage of chloride present was found to be 24.73695223 (±0.00000006) %.
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Essay Analysis 9/24/2013 Combass Analyzing the Writer 1: Gerald Jones was raised by “well-meaning‚ progressive‚ English-teacher parents”. Placed in a small‚ experimental school that he didn’t adjust too while growing up in the violent late 1960’s‚ Jones found himself not engaging with his peers or into boyhood. 2: Jones background of passivity and loneliness while growing up caused him to be oblivious and unfamiliar with American pop culture. Also‚ he was afraid of socializing among his
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Take a Bottle of Chemicals Please Water‚ our main source to survive. Water is the fuel humans run off of to become healthy‚ hydrated‚ and energized. The difference is whether people drink out of a bottle or out of the sink. When cooking‚ cleaning‚ showering and brushing teeth people are using the water coming from the underground or above ground. It is easily accessed in everyday lives. Most prefer a bottle because it is already filtered and it is cleaner but‚ water like Dasani or Zepherhills has more
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What does this mean? Water molecules are removed from the bond. 6. For each of the following tests‚ please circle which substance would give a positive result: a. Benedict’s test - glucose tap water oil (lipid)) starch protein b. Starch test - glucose tap water oil (lipid)) starch protein c. Sudan IV test - glucose tap water oil (lipid)) starch protein d. Biuret test - glucose tap water oil (lipid)) starch
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