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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[pic] Questionnaire: 1. What brand/s of flavored juice product do you usually buy? Please rank according to preference. (1 – as the most preferred; 2 – as the 2nd most preferred; 3 – as the 3rd most preferred and so on…) __ Tang __ Magnolia __ My Juiz __ Kool Aid __ Nutri C __ Sundays __ Others‚ please specify: ___________________________________________ 2. What brand/s of iced tea product do you usually buy? Please rank according to preference. (1 – as the most preferred;
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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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The Catalyst to the Korean War It is often thought of‚ as the “Forgotten War”‚ the Korean War took place between the years 1950-1953. Korea was a frequently fought-over peninsula in the late 19th century and early 20th century. Korea was dominated by China as a tributary nation for centuries‚ fought over by China and Japan in the first Sino-Japanese War (1894-1895) and fought over again by Japan and Russia in the Russo-Japanese War (1904-1905)‚ both wanting it for colonization. It was annexed
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McGivern. Access to nursing Group 2 Effects of pH on enzyme activity Contents Front cover Aim Introduction Hypothesis Prediction Variables Materials Methods Results Discussion Conclusion Bibliography Aim The aim of the experiment is to see the enzyme amylase catalyse starch in a chemical reaction. | | Introduction Enzymes are proteins. They act as catalysts‚ allowing chemical reactions to take place by lowering
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Nhi Huynh Professor John Voyer Due Date 09/18/2014 External Analysis Assignment Jamba Juice (JJ) was founded by Kirk Perron in 1990. It is now a chain of smoothie restaurants with over ten thousands stores in the United States. According to the PESTEL analysis technique‚ Political plays an important role of a business life. Nowadays‚ with the economy regression‚ Government has been tight up the budget of spending and got more taxation project to people. Tax is increasing
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Battery from Potato Introduction: Batteries generate electricity through a chemical reaction between two different electrodes and one electrolyte. Use of Copper and Zinc electrodes and Sulfuric acid as electrolyte is a proven method for this process. We are wondering if we can use any other liquid as electrolyte? This gave us the idea of using a potato as electrolyte. After all a fresh potato has a lot of juice that may serve our purpose as electrolyte. Problem: Can Potato be used to generate
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Oratorical Piece Theme: “Students as Catalysts for Peace” Friends‚ let me begin by quoting you a line lifted from Eleanor Roosevelt. “It isn’t enough to talk about peace. One must believe in it. And it isn’t enough to believe in it. One must work at it.” This ladies and gentlemen challenges Juan De la Cruz‚ the majority common Filipino people. And what is more moiling to this are the sweet and sour additives and influences of the society. My friends‚ as we all know Philippines is somehow ignorant
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phosphorylase in particular) are affected by varying its temperature before introducing it to the substrate it will be reacting with. A catalyst (enzyme) is a substance that changes the rate of a reaction; for a reaction to take place at all‚ the enzyme must first come into contact with the substrate. Enzymes are subject to a number of factors which effect how fast they can cause a reaction with a substrate; these factors include temperature‚ pH levels‚ chemical substances and the concentration of both
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Enzyme Activity The Question Effects on Enzyme activity: investigating the effects of mixing Hydrogen Peroxide with Catalase extracted from potatoes at different temperatures‚ and then comparing the results with the same method‚ except to replace the Potato juice with MnO2 Hypothesis Since enzymes are a type of protein‚ they will be destroyed at high temperatures and activity rates will go down at low temperatures. Also‚ if done at low temperature and then heated to room temperature‚ the enzyme
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