CAT - Measuring the pH of common household substances 1. Predict the pH value of substances & estimate the pH value by using the universal indicator. 2. Use the indicator to identify acidic‚ basic‚ and neutral substances found in any home 3. Classify household items as acids and bases 4. Collect organise and analyse results in tables and graphs (if necessary) 5. Analyse results and explain the reason the substances have the pH obtained. Aim – To use a universal
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Republic Act No. 9173 October 21‚ 2002 AN ACT PROVIDING FOR A MORE RESPONSIVE NURSING PROFESSION‚ REPEALING FOR THE PURPOSE REPUBLIC ACT NO. 7164‚ OTHERWISE KNOWN AS "THE PHILIPPINE NURSING ACT OF 1991" AND FOR OTHER PURPOSES Be it enacted by the Senate and the House of Representatives of the Philippines in Congress assembled: ARTICLE I Title Section 1. Title. - This Act shall be known as the "Philippine Nursing Act of 2002." ARTICLE II Declaration of Policy Section 2. Declaration
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The effect of enzyme concentration‚ substrate concentration‚ pH‚ and temperature on the enzyme catalase. Introduction: Enzymes are biological catalysts; proteins and RNA. They are required for most biological reactions and they are highly specific. Each enzyme has an active site. The active site is the spot on the enzyme where a substrate fits in. Substrates binds with enzymes through the active site. Enzymes‚ being highly specific‚ only fit with one certain substrate. Enzymes and substrates
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Solution Name Color Description Known 1 Barium Green Known 2 Calcium Red Known 3 Sodium Yellow Known 4 Rubidium Purple Known 5 Potassium Blue Known 6 Lithium Pink Unknown Sodium Yellow Unknown Potassium Blue The first unknown is sodium because it has a yellow flame. The second unknown is potassium because it has a blue flame. Part 2: Hydrogen Helium Sodium Neon Mercury Star 1 Purple‚ 410 Blue‚ 449 Yellow‚ 579 Purple‚ 420 Blue‚ 430 Aqua
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will allow for the extraction of caffeine and flavor from the coffee beans. Acid base chemistry can be useful in separating neutral‚ basic‚ and acidic organic substances by controlling the pH of the aqueous layer. In acid base extraction a solvent such as ether is mixed with an aqueous solution of a different pH. This will aid in ionizing the intended compound and separate it from the mixture. Once the molecule is ionized it will precipitate out of the ether solvent and dissolve into the aqueous layer
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Junk food is dangerous to your health. A high intake of junk food can lead to stomach disorders and can also affect the heart. There are now over 400‚000 deaths per year caused by illnesses related to being overweight‚ which means that obesity has now overtaken smoking for the leading preventable cause of death. Currently‚ youths and children are becoming more addicted to junk food and if this continues‚ one in every three children born will develop diabetes in their lifetime‚ which can cut 17-27
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The Affects of pH on Peroxidase Enzyme Claire Bell Biology 1130 Jazmen Myers Section 36 Abstract Peroxidase is a turnip enzyme; it is used in the oxidation of hydrogen peroxide to lower activation energy‚ speeding up the reaction. The activity of peroxidase is highly dependent on its environment and most importantly the pH level. Peroxidase has been the focus of many recent studies and is believed to possibly reduce swelling among other things. We conducted an experiment testing
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Background of the Study Junk food is a derisive slang term for food that is of little nutritional value and often high in fat‚ sugar‚ salt‚ and calories.[1][2][3] It is widely believed that the term was coined by Michael Jacobson‚ director of the Center for Science in the Public Interest‚ in 1972.[4] Junk foods typically contain high levels of calories from sugar or fat with little protein‚ vitamins or minerals. Foods commonly considered junk foods include salted snack foods‚ gum‚ candy‚ sweet desserts
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Effects of Organic Food on Drosophila Melanogaster A new study has shown that fruit flies that lived on organic foods tended to be healthier than those that lived on conventional foods. The two things that researchers based their conclusions for health on were fertility and longevity. These two things are two important aspects to a fly’s life. On both of these tests‚ the flies that were fed organic food performed better than the flies that were fed conventional food. They survived for a longer
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The Effects of Microwave Apparatus on Food and Humans Hikaru Sugimori A microwave is a kitchen appliance that cooks food by dielectric heating. This is done by using radiation to heat water and other polarized molecules within the food. Using the microwave‚ people can buy pre-cooked foods at convenient stores and cook them in the microwave at home in a matter of minutes. Microwave ovens became widespread in the 1970s and 80s‚ and today‚ 90% of American households have a microwave. Microwaves
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