Determination of an Unknown Concentration of Potassium Manganate using Colorimetry Introduction The purpose of this experiment is to conclude the concentration of an unknown solution using colorimetry to plot a calibration curve. Colorimetry measures the absorption of light at wavelengths within the visible region of the electromagnetic spectrum. It can be used to identify the unknown concentration of a solution in reference to a solution of a known concentration. When a solution appears coloured
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Osmosis investigation Aim: To investigate how sugar concentration affects the mass or size of a potato and find out the sugar solution. Introduction: Osmosis is the movement of water molecules across a partially permeable membrane form a region of high water concentration to a region of low water concentration until the concentration on both sides is equal. This means that osmosis is like diffusion involving water molecules. Osmosis occurs across a partially permeable membrane‚ with holes
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There are many factors that affect the rate of reaction of bromelain on jello‚ these include pH‚ temperature and substrate concentration. In this demonstration‚ we were able to assess the effect of substrate concentration of pineapple (Containing bromelain) on jello. Our results showed that the relationship between rate of reaction and the change in mass of the jello is proportional. This can be seen that the higher the change in mass of jello‚ it would demonstrate a higher reaction rate‚ as the
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Practicing a sport is much more than the pure act of pushing your body through exhaustion or using your skills to reach your goals. There are many effects that show after you get involved in a sport. I am going to discuss some effects in this paper. The first major effect of practicing a sport is that you will develop physical abilities. Your body will be in better shape and you will be able to do things that you couldn’t physically do before. For example your speed‚ strength‚ stamina‚ lung capacity
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Running head: GREEN HOUSE EFFECT Gwinnett College Mr. Seder Research Paper 3/27/13 Air pollution and greenhouse gases are the reason for the planet as it is today; the reason why we see campaigns flooding the media informing us to ‘switch off’‚ ‘save the planet’ and ‘turn down the heat’ and the reason why the government is trying to develop a successful scheme‚ such as the carbon tax scheme‚ to reduce air pollution caused by major industries. Air pollution and greenhouse gases are
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Spectrophotometric determination of Ascorbic acid Concentration in an Unknown Solution Introduction: The naturally occurring organic compound with antioxidant properties is Ascorbic acid shortly referred as (AA). Normally the color of Ascorbic acid is white‚ but in some cases of impure samples it appears yellow in color. Ascorbic acid is solid in state. In water it dissolves well to give mildly acidic solutions. Ascorbic acid is one form ("vitamer") of vitamin C [1]. So‚ Ascorbic Acid (AA)
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Italians‚ and the Japanese led to horrible death. The concentration camps killed thousands of people. The Japanese concentration camps‚ in particular‚ were awful places that forced hard labor out of prisoners of war until they died. During World War II‚ the Japanese lost to the Allies and surrendered‚ but the concentration camps of the Japanese still caused the death of many prisoners of war. The hard labor forced by the Japanese concentration camp runners wasn’t only unsafe and unhealthy for the
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Full Report on Exercise 4.2 ESTIMATION OF PROTEIN CONCENTRATION BY SPECTROPHOTOMETRY And Exercise 4.3 GEL FILTRATION CHROMATOGRAPHY Joel Don M. Untalan CHEM 160.1 – 1L AY 2013 – 2014 Groupmates: Sonette Yao Kristopher Quilan Laboratory Instructor Carmelo C. Briones I. Introduction Analyzing proteins in determination of protein concentration by spectrophotometry is important. It determines to what concentration of a certain protein is in a crude sample. In this technique‚ a wide
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try to find out its probable causes and effects with particular reference to Akatta‚ a town in Oru-East local government area of Imo state. It is the view of the researcher that early marriage continues to increase daily in spite of the awareness being created by governmental and non-governmental agents over the dangers of early marriage which posses problem to the entire society. The researcher believes that it is relevant to study the major causes and effects of early marriage in order to enlighten
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This study was conducted to determine the effects of plant extracts from garlic allium sativum‚ Oregano Origanum vulgare‚ and guava Psidium guajave) as vase solution. Extract used for the preparation of vase solutions were taken from fresh garlic cloves‚ oregano and guava leaves. Water extracts were subjected to water bath at 50’C-60’C for 5 minutes for pasteurization. Flower buds were placed in plastic cups containing vase solutions with varying concentrations of extracts. Observation was done for 7
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