Chemistry of cosmetics Few people would whip out a chemistry set‚ uncork the vials‚ and slap the compounds on their face. Yet‚ millions of women and girls essentially do that every day when they unzip their makeup bags and apply lipstick‚ mascara‚ and other makeup. Like the compounds in a chemistry set‚ makeup consists of chemicals. Although the chemicals in cosmetic products are intended to improve the appearance of skin‚ lips‚ and lashes‚ some can cause adverse effects. Emulsions The majority
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Biological Membrane Study: HCl‚ NaOH‚ SDS Objective and Hypothesis: The objective of this lab is to determine the effects of SDS‚ HCl‚ and NaOH on red cabbage cell membrane. Prior knowledge can tell us that the red cabbage is a red-purple color due to a pigment called anthocyanin. This is what we will be testing in the experiment. We also know that HCl is a strong acid (very low pH) and that NaOH is a strong base (very high pH). From information learned in this course (lecture/lab) we can assume that both
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are report to the same power of ten. You may have to make all the values times ten to the fourth power to draw this graph. Don’t connect the dots; instead draw either a “best fit” line or a smooth carver for the following data. Concentration of HCl (M) | Rate of reaction (g/sec) | Rates of Reaction(x 10-4 g/sec) | 0.50 | 3.9 x 10-5 | 3.9 x 10-9 | 1.0 | 1.8 x 10-4 | 1.8 x 10-8 | 3.0 | 7.5 x 10-4 | 7.5 x 10-8 | 6.0 | 1.43 x 10-3 | 1.43 x 10-7 | What would you expect for the reaction if
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The Inorganic Chemistry of Carbon Inorganic Carbon For more than 200 years‚ chemists have divided compounds into two categories. Those that were isolated from plants or animals were called organic‚ while those extracted from ores and minerals were inorganic. Organic chemistry is often defined as the chemistry of carbon. But this definition would include calcium carbonate (CaCO3) and graphite‚ which more closely resemble inorganic compounds. We will therefore define organic chemistry as the study
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BIO 120 General Biology I Note-taking/Study Guide Chemistry What is chemistry? Define energy Define potential energy and give an example Define kinetic energy and give an example Define matter Describe the three states of matter? Define elements Define atoms What are the three subatomic particles? What are their charges? Where are they found in the atoms? Define atomic number. Use the periodic table to determine the atomic number of various elements. Define mass number. Use the periodic table
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Chemistry and Society Teresa Miller University of Phoenix CHM 110 September 9‚ 2014 William De Vorick Chemistry is defined as the branch of science that deals with identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact‚ combine‚ and change; and the use of these processes to form new substances. Chemistry is important to my everyday life and society because everything exists because of chemistry
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Polymer Chemistry Classification of Polymers – Notes prepared by The most common way of classifying polymers is to separate them into three groups - thermoplastics‚ thermosets‚ and elastomers5. The thermoplastics can be divided into two types - those that are crystalline and those that are amorphous. You may click on the words in the diagram below to learn more about these classifications. Thermoplastics Molecules in a thermoplastic are held together by relatively weak intermolecular
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Aqueous Acid/Base Chemistry Resources: Harris ‘Quantitative Chemical Analysis’ Review: Pure water has a pH = 7 Autodissociation: H2O (( H3O+ + OH- K = [H3O+][OH-]/[H2O] -log[H3O+] = 7 [H3O+] = 10-7 M = [OH-] [H2O] = 55.56 M K = 1.8 x 10-16 ; pKa = 15.74 pKa is the acid dissociation constant; low pKa (strong acid‚ high pKa (weak acid we can also write Kw = [H3O+][OH-] Kw = 10-14 In water‚ pH + pOH = 14 pH scale Strong
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P. Stonebraker Organic Chemistry II lecture UCB Extension Spring 2013 Extra Credit Report Papers Paper is strictly optional. Write a 4-6 page paper on a subject approved by the instructor (either picked from the list below or picked by yourself). Emphasis in the paper should be on the organic chemistry associated with the subject (how it is synthesized‚ uses‚ etc.). No two students can research the same subject. Maximum value of the paper will likely in the 20-40 point range‚ depending
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explain the importance of chemistry in your life and in society. Include the following information: · Describe the scientific method. Explain all the steps involved in this method. · Explain how society applies the scientific method in industry‚ market‚ and academia. · Explain how you may apply the scientific method in your daily life and in your future career Format your paper consistent with APA guidelines. Chemistry is very important in
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