para-hydroxybenzoic acid‚ which is why they are collectively called parabens. However‚ in contrast to its cousins‚ ethylparaben‚ butylparaben‚ and propylparaben‚ methylparaben receives its specific name owing to the fact that its chemical structure contains the methyl alkyl group. Methylparaben is found in several fruits‚ in particular blueberries‚ where it acts as an antimicrobial agent. Methylparaben is an anti-fungal agent often used in a variety of cosmetics and personal-care products. Methylparaben is commonly
Premium
TCA ALUMNI WEBSITE Reviews of Related Literature and Studies This chapter primarily presents the different researches and other literatures form both foreign and local researchers‚ which have significant bearings on the variables included in the research. It focuses on several aspects that will help in the development of this study. The study is generally concentrating on the feasibility of creating an Alumni Website for Tarlac College of Agriculture. The literatures of this study come from books
Premium University Computer Student
Chapter 28 – The Age of Anxiety 1) Uncertainty in modern thought a) The effects of World War I on modern thought i) Western society began to question values and beliefs that had guided it since the Enlightenment. ii) Many people rejected the longaccepted beliefs in progress and the power of the rational mind to understand a logical universe and an orderly society. (1) Valéry wrote about the crisis of the cruelly injured mind; to him the war ("storm")
Premium World War II Science Epistemology
In this experiment the initial mass of the sodium carbonate used was 2.69g. In each titration‚ 3 drops of methyl orange was added to the sodium carbonate solution. With this information the titration can begin‚ and the results obtained are shown below: Titration readings Titration Rough 1 2 3 4 5 Initial 0.00 4.30 22.00 21.00 15.00 25.90 Final 4.30 22.00 38.60 37.60 32.60 42.20 Titre (cm3) 4.30 17.70 16.60 16.60 17.60 16.30 Therefore‚ the average titre would be calculated as follows;
Premium Titration Chemistry Mole
Nitration and Purification of Bromobenzene Abstract: An electrophilic aromatic substitution reaction was performed on bromobenzene with nitric acid producing both 2-bromonitrobenzene and 4-bromonitrobenzene. Products of the reaction were purified through multiple recrystallizations and column chromatography creating multiple crops of a yellow powder. The percent yield of products was determined to be 51%. The melting point of Crop 1 was found to be 110-115 °C‚ and Crop 2 was found to be 37-90
Premium Electrophilic aromatic substitution Aromaticity Organic reaction
Glen Huang Period 9 Synthesis of Isopentyl Acetate Purpose: To prepare isopentyl acetate from isopentyl alcohol and acetic acid by the Fischer esterification reaction. Materials: West condenser‚ 250 mL round bottomed flask‚ two 250 mL flasks‚ heating mantle‚ boiling chips‚ graduated cylinder‚ sodium bicarbonate‚ isopentyl alcohol‚ glacial acetic acid‚ concentrated sulfuric acid‚ separatory funnel Procedure: 1. Place 50 mL of isopentyl alcohol in a 250 mL round bottom flask and add 60 mL
Premium Ester Acetic acid Oxygen
28 Days Answer the questions on your own paper in complete sentences. Questions are not in order but that is not important. If you are paying attention to the movie‚ you will be able to answer the questions. 1. Why did Gwen end up in rehab for 28 days? 2. List every substance that Gwen abuses. Which one do you think was her gateway drug? 3. What were Gwen’s physical withdrawal symptoms? 4. What prompted Gwen to realize she had a problem with substance abuse? 5. In what ways
Premium Addiction Drug addiction
Sole proprietorship- A business owned by one person Unlimited liability- the owner is responsible for the company’s debt Partnership- a business owned by two or more people Corporation- a company that is registered by state and operates apart from its owners Limited liability - holds a firm’s owner responsible for no more than the capital that they have invested in it. Cooperative- an organization that is owned and operated by its members Nonprofit organization-an organization that focuses
Premium Management Corporation Marketing
28 Days In the movie 28 days‚ emotional and physical the ups and downs of Gwen while in the treatment center are shown through many things and people. The movie itself is about this woman who is an alcohol abuser‚ and is forced to be put in a treatment after she screws up her sisters wedding and destroys property. It shows the different activities in the center that are used to cure everybody. In the movie‚ the different dimensions of Gwen are affected by her alcohol abusing. The one I
Premium Abuse Physical abuse
Unit 28‚ P1‚ M1 Disengagement Theory This is when a person‚ usually an older person‚ withdraws from involvement or when someone’s relationships with other people slowly cut off or change. Older people may withdraw from involvement when they feel they are limited to try and interact with other people. It has been proved that a lot of older people were more involved with life when they were younger however some people disagree and feel there are a large number of people who do not withdraw from
Premium Health care Health Gerontology