Result Starch suspension When the yellowish-brown iodine was added into the starch suspension‚ the starch suspension was changed into dark blue. Potato slide Discussion Starch suspension When the yellowish-brown iodine was added into the starch suspension‚ the starch suspension was changed into dark blue. This is due to the yellowish-brown iodine changed into dark blue when there is a presence of starch. This shows a positive test for starch. Potato slide
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AN INSIGHT INTO THE WORLD OF CHANDIGARH The City Beautiful Chandigarh is a city and union territory in India that serves as the capital of two states‚ Punjab and Haryana . It is also referred to as The City Beautiful due to its beautiful surroundings‚ central grid of gardens‚ each dedicated to different species of flora. The city of Chandigarh was the first planned city in India and is known internationally for its architecture and urban design. The city has projects designed by architects
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can reach a new pH level by interacting with soil. If water has a pH that is too high or too low‚ it can be life threatening to aquatic species and can corrode metal structures. After finding this out‚ I decided to test if water could reach an extreme pH just by interacting with soil around it. The question for this experiment therefore became the following. Will interaction with soil change the pH of water? I hypothesized that if water interacts with soil for three days‚ then the pH of the water will
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concept and meaning of pH 2. Provide the student experience in measuring pH a. pH testing paper 3. Test the student’s hypothesis as it related to the pH of common solutions Hypothesis The pH of the tested solutions will be in the order of the following according to a pH scale: 1. Lime juice 2. Orange juice 3. Soda 4. Iced Tea 5. Milk 6. Water 7. Soapy water Material Required To facilitate this laboratory exercise‚ the experimenter needs the following: pH strips Sample reservoirs
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II: Titration with a pH Meter 1. Fill the 50-milliliter buret with a 0.25 molar NaOH solution. 2. Record volume. 3. Measure out between 20 milliliters and 40 milliliters of the unknown HCl solution. This amount must be different than the amount used in part I. 4. Record volume. 5. The amount of unknown HCl is then added to the 100-milliliter Erlenmeyer flask. 6. Insert the pH meter into the Erlenmeyer flask and record the initial pH of the acid. Remember to record the pH of the solution after
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Properties of pH The manufacture’s claim is that Sensodyne toothpaste micro hardens tooth enamel to help protect against the effects of acid wear‚ helps stop the twinges of pain from sensitive teeth formulated with low abrasivity‚ neutral pH and gentle yet effective cleaning system. To find out if the manufactures claim on Sensodyne toothpaste is the correct level of pH. I expect the Sensodyne toothpaste to be a neutral pH level as the manufactures claim that this products pH level is neutral
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PHILIPPINES TO LEAPFROG TO BE THE 16TH LARGEST ECONOMY BY 2050 ACCORDING TO IMF The Republic of the Philippines is one among those list of developing economy and owns the possibility of being one of the fruitful nation in the next succeeding decades. Our country is highly expected to jump 27 places to become the 16th largest economy by the year of 2050 as projected by The Hong Kong and Shanghai Banking Corporation International Bank. Resounding softly across the 7‚100 islands that form the Philippines
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Ph Lab Report Bryon Kim 123013 B(2) Biology Background information/Research PH paper (litmus paper) determines how acidic or how basic a substance is. The paper changes color accordingly to color code on the pH scale. The pH scale starts from 0 to 14. The lower the number the more acidic it is. Zero is the most acidic‚ and 14 is the most basic while 7 is the neutral number for example water. Examples of an acid is lemon juice or multi purpose cleaner. Examples of a basic substance is shampoo or liquid soap
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analyzing pH it measures for the acidity or basicity of a solution. pH levels vary depending on the solution. The more acidic solutions would be juices and vinegar and cleaning materials would be basic. You can determine the purpose of solutions based on their acidity and basicity. We measure the pH of solutions on a scale with levels from 1-14. These levels may change if other solutions are added‚ we can tell what the pH will be based on its colour. Solutions called buffers change the pH levels of
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Experimental Analysis on Enzymatic Behavior of Human and Fungal Amylase Lab name and number: Enzymes‚ Lab #5 Panther I.D: 2640403 Shayra Medal Instructor: Emily Nodine Section U21 October 26‚ 2011 X_______________________ Abstract Section The concept of this experiment was to analyze the enzyme Amylase and its environmental behavior. Amylase breaks down the biological macromolecule‚ carbohydrates‚ specifically starch into condensed subunits categorized as monosaccharaides or disaccharides
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