Synopsis: The main aim of the experiment is to find out the amount of calcium carbonate in toothpaste through back titration since calcium carbonate does not dissolve in water. A roughly weighed amount of calcium carbonate is mixed with hydrochloric acid and then titrated against sodium hydroxide. When the indicator turns from pink to orange‚ the volume of sodium hydroxide used is taken down. After doing some calculations‚ the average percentage of calcium carbonate in toothpaste is 19.2%. This average
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Climate change is the alterations the climate goes through due to a number of factors. These factors can be described as natural or anthropogenic (“Climate Change” Britannica 2015). Natural drivers of climate change are as a result of natural processes such as changes in the solar activity‚ volcanic activity or the Earth’s orbit. Anthropogenic factors affecting climate change refers to the impact that human activity has on climate change‚ particularly do to the release of greenhouse gasses and clearing
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Effect of Concentration‚ pH and Temperature on Enzyme Activity Biology For Majors October 4‚ 2012 Abstract We examined the reaction an enzyme has when its concentration‚ pH and temperature are altered. In order to do this‚ we added different levels of pH into different test tubes with the enzyme (sucrose)‚ and substrate (sucrose)‚ and we then inverted the tube. The higher pH produced more enzyme activity. Temperature effects enzyme activity by decreasing its stability when the temperature
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lectures extremely hard. It takes 48 hours to process information‚ and with those obstacles in the way‚ learning at school is almost impossible. (Randy Ware‚2013) encourages his students to create regular sleeping patterns. Students’ health is also a factor with less sleep.
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latent qualities‚ effecting a change for the better. There are four aspects to an individual’s personality: body‚ mind‚ heart and soul. Several factors contribute to one’s personality‚ to the development of one’s personality. These are all integral to the above mentioned aspects. The recognition‚ and consequently‚ the maintenance and progress of these factors – whether physiological or psychological‚ whether internal or external – is essential for ‘personality development’. Health is a state of complete
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Adwoa Fosuah Bio Psych Lab Report 4 Cold Pressor Task Aim The cold pressor test is done by having the subject submerge their hands in a bucket of cold water to determine cardiovascular changes such as blood pressure and heart rate. For this experiment we wanted to know how long participant can keep their feet in the bucket of ice water before they experience any pain while looking at neutral and positive pictures and also rate the intensity of their pain. For this reason we hypothesized that
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References: “Experiment 3. Synthesis of Aspirin.” {2013}. In: [Lab] Haynes‚ W. M.‚ & Lide‚ D. R. (Eds.). (2010). CRC: Handbook of chemistry and physics (91st ed.). Boca Raton‚ Fl: CRC Press‚ Taylor & Francis Group. Meyer‚ R. L. (2007). The 100 Most Important Chemical Compounds. Westport‚ CT: Greenwood Press. Palleros
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Enzyme Catalysis Maltose sugar is broken apart by maltase enzyme Substrate are molecules enclosed in the enzyme Catalase: found in every living thing Takes two molecules of hydrogen peroxide and converts it irreversibly to create oxygen gas and water 2H2O2O2+2H2O Question: What variable affects the rate of enzyme catalysis most? Variables Tested: Hydrogen Peroxide concentration‚ yeast concentration‚ heat and pH Materials: 10% glucose mixture 1.5 %‚ 3% and 6% peroxide mixture Yeast
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What Are The Factors Which Influence Individual Behaviour At Work? According to John Ivancevich and Michael Mattson‚ the major factors that influence individual differences in behavioural patterns are demographic factors‚ abilities and skills‚ perception‚ attitudes and personality. Let us discuss them and they are as follows:- 1. Demographic Factors: The demographic factors are socio economic background‚ education‚ nationality‚ race‚ age‚ sex‚ etc. Organisations prefer persons that belong to
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BSHS/335 The factors that influence the use of Francine Licata‚ C.S.W. ‚ skills are that she is a professional. She has many tasks to carry out on a daily basis. Clinical social work is broadly based and addresses the needs of individuals‚ families‚ couples‚ and groups affected by life changes and challenges‚ including mental disorders and other behavioral disturbances. Clinical social workers seek to provide essential services in the environments‚ communities‚ and social systems
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