Investigatory Project In Chemistry (Rose Petal Perfume) Prepared by : Jhannine Mae Talain Eileen Shelly Velasquez III-St.Isidore January 13‚2012 Prepared for : Mrs. Geraldine M. Yadao I-Introduction We thought and brainstormed about what we are going to do for our investigatory project. One of us gave the idea to concentrate on a particular topic‚ which is about soap making but after all the long thinking and brainstorming‚ we decided to come up with a perfume as a product with the use of rose
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Unlocking the Secrets of the Universe Increasing our knowledge of Physics‚ using the scientific method to make observations and test hypotheses is essential to unlocking the secrets of the universe. Energy is one of the most fundamental elements of the universe. Throughout history‚ man has endeavored to expose‚ understand‚ and explain how and why things work. This drive to expand our understanding eventually led to the development of the scientific method and what is commonly considered
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Chemistry Exam Study Sheet Organic Chemistry • Study of compounds to which carbon is the principal element. • Carbon is special because it has 4 bonds. Functional Groups • Organic substances are organized into organic families. • Organic Families – group of organic compounds with common structural features. o Each family has a recognizable physical property and a specific structural arrangement. o Each combination is referred to as a functional group. o Even
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common method used to produce dye nowadays. In this experiment‚ dye produced was the orange II. Azo compound is compound that contain azo group (-N=N-) between the conjugated aromatic ring and absorb light to show. Azo compounds are usually intensely coloured because the azo (diazenediyl) linkage –N=N-‚ brings the two aromatic rings into conjugation. This gives and extended system of delocalized π electrons and allows absorption of light in the visible region. Azo compounds‚ because of their intense
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are going to consider its advantages and disadvantages. On the one hand‚ some people think that alternative medicine is healthier because it relies on natural substances. We can find different methods such as: Aromatherapy‚ based on breathing in aromatic oils or massaging them into the skin for physical or emotional health; or homeopathy‚ based on using herbs and other natural substances to heal. These people believe that our bodies were being poisoned by the drugs that most doctors prescribe.
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CHAPTER I INTRODUCTION Pollution is one of the main problems the world faces today. One of the reasons is the overload of non-biodegradable objects like plastics‚ cans and Styrofoam. The invention of plastics and Styrofoam made a huge change in our society and it helped us in many ways. But it is also one of the main pollutants that destroy our planet. Because of these we devised a way to recycle used Styrofoam‚ and this is to make glue out of it. This glue can help reduce the number of Styrofoam
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BROMINATION OF ACETANILIDE OBJECTIVE Aim of the experiment was too brominate acetaldehyde to form p-bromoacetanilide. INTRODUCTION Acetanilide is a chemical compound with the chemical formula of C6H5NH(COCH3). It is a crystalline solid that is prepared by acetylation of analine and is widely used in the dye industry. This crystalline solid is an odourless solid chemical that has a flake or leaf like appearance. It is also known as N phenylacetamide‚ acetanil or acetanilide. Its former
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i am so afraid of any kind of insect especially cockroaches and i want to act before i have a problem with it. What do you suggest i do to prevent the insects from even approaching my house? If this happens‚ how do i minimize the problem? Thanks There is nothing more annoying than having a houseplant with an insect infestation and not knowing what to do about it. To prevent destruction from pesky insects‚ though‚ you must know what you are up against and what is effective to keep the pests away
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Zealong and will help to gain customers confidence on the pureness and goodness of the tea; guaranteed free of chemical sprays‚ fertilizers‚ and additives. Initially‚ Zealong has offered three different kinds of flavour tones which were pure‚ aromatic‚ and dark. However‚ recently‚ Zealong has added one more flavour to be offered in its product range‚ black. Each of the different flavours offered is aimed to fulfill vary in preference for tea among tea drinkers. To further provide its potential
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produced from domestically grown‚ renewable sources‚ such as crop oils or animal fats which are then chemically converted into biodiesel (Habmigren‚ 2003). Unlike diesel‚ biodiesel contains no petroleum products and free of sulfur compounds and aromatics (Habmigren‚ 2003). Until today‚ it is still the only alternative fuel for motor vehicle. The biodiesel blends have ranged from 2/98% (B2)‚ 20/80% (B20)‚ to 100% (B100) (Hafman‚ 2003). The reasons biodiesel is a viable alternative to diesel from fossil
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