the percent using oxidation reduction and double reactions 3. To become more familiar with the use titration techniques 4. To learn how to get the salt out of an quimical Background: To develop and utilize procedures to determine the percent composition‚ of ZnCI2. As well titrating with NaOH solution. After all the experiment we got hta salt witch we weighted and we got our results. Experiment reactions: .33w of Zn(OH)2 x moles Zn(OH)2/m. moles Zn(OH2) x 1molZnCI2/1 mol Zn(OH)2 x g molZnCI2/1
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About Me My name is ............................ I was born and raised in Queens‚ New York. Currently I am a full time college student at La Guardia Community College. My major is Criminal Justice. I am planning on transferring to John Jay of Criminal Justice after I earn my 45 college credits in order to join the New York Police Department Cadet ‚ my GPA is also good enough to be qualified on John Jay. I am currently a volunteer for New York Police Department Auxiliary. Since I was a kid I used
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Epsom salt is a mineral compound containing magnesium and sulfate. Long praised for its numerous uses‚ Epsom salt has been long used for beauty care‚ health‚ cleaning purposes‚ gardening-related uses‚ etc. 1. Hair shampoo Take Epsom salt and add it to your shampoo‚ wash your hair as usual‚ in order to remove the excess oil in the case of greasy hair. 2.Improves hair volume In order to eliminate the frizz and get more volume‚ you should combine your hair conditioner with Epsom salts in equal
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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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incorporated into the inks. Sometimes‚ the color change occurring at a temperature is permanent‚ and at other times the original color can be regained on cooling. Accordingly‚ we have an irreversible or reversible thermochromic system. The required chemistry can be adopted based on the end use. That means one can select an irreversible thermochromic system when a certain temperature crossing is to be monitored and a reversible system when the actual temperature range is to be monitored. The color change
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Candidate Signature Candidate Number For Examiner’s Use Examiner’s Initials Question Mark General Certificate of Secondary Education Higher Tier January 2012 1 2 3 4 5 TOTAL Science B Unit Chemistry C1 CHY1H Chemistry Written Paper Unit Chemistry C1 H Thursday 26 January 2012 You will need no other materials. You may use a calculator. 9.00 am to 9.45 am Time allowed 45 minutes Instructions Use black ink or black ball-point pen. Fill in the boxes
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09-10-09 When you hear the word radioactivity‚ you think directly about dangerous gasses. But radioactivity can also be a way of healing people. The most known are X-rays and radiotherapies. Too much radioactivity is‚ in contrast with radioactive medicines‚ dangerous for your body. You can get seriously sick‚ cancer for example‚ or even die. A tragic example of this is Tsjernobyl‚ where a nuclear reactor exploded. In this essay I will try to answer the question: How can radioactivity help people
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CHEMISTRY OF LAETRILE ( AMYGDALIN / VITAMIN B17) AUTHORS: Audrey De Jesus Rowie Joy Pilapil Shariel Eunice Juanillas Polytechnic University of the Philippines College of Science Department of Nutrition and Dietetics Sta. Mesa‚ Manila ABSTRACT Vitamin B-17‚ commonly known as "Amygdalin”‚ is a plant substance found naturally in raw nuts and the pips of many fruits‚ particularly apricot pips‚ or kernels. It is also present in plants such as lima beans‚ clover and sorghum. Laetrile‚ on the other
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English 10 Aspiring Education Education is a must on every people’s lives‚ a requirement for a person to be successful in life. We can all remember how our parents scold as‚ as we disobeyed on what they are telling us to do. My parents inspire me about education. Both of them finished high school and graduated in college; my father graduate with a Master’s Degree while my mother has a Bachelor’s Degree. They struggled so hard to be successful‚ so my siblings and I will have a healthier life‚ a better
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Essay about Obesity Obesity results from chronic energy intake that exceeds energy expenditure and is characterized by "excessive" body fat. The precise assessment of an individual’s body fat is an expensive and complicated procedure. Instead‚ body mass index (BMI)‚ though somewhat controversial‚ is used commonly because it is easy to assess and correlates highly with body fat. BMI is calculated by taking an individual’s weight in kilograms and dividing it by that individual’s height in meters squared
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