Alternative Energy SCI 207 Professor Selhorst Experiment 1: The Effects of Coal Mining Table 1: pH of Water Samples Water Sample Initial pH Final pH (24-48 hours) Pyrite 5 5 Activated Carbon 5 7 Water 5 5 POST LAB QUESTIONS 1. Develop hypotheses predicting the effect of pyrite and coal on the acidity of water? a. Pyrite hypothesis = If pyrite is added to water‚ it will make the water more acidic. b. Coal hypothesis = If the activated carbon is added to the water‚ it will make
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contact@oswaalbooks.com‚ website : www.OswaalBooks.com CONTENTS 1. Food Where Does it Come From? Ø 1&2 Worksheets 2. Components of Food 1 3 5 7 10 13 15 17 19 21 24 27 29 32 34 37 - 2 4 6 9 12 14 16 18 20 23 26 28 31 33 36 39 Ø 3&4 Worksheets 3. Fibre to Fabric Ø 5&6 Worksheets 4. Sorting Materials into Groups Ø 7&8 Worksheets 5. Separation of Substances Ø 9 & 10 Worksheets 6. Changes Around Us Ø 11 &1 2 Worksheets 7. Getting to Know Plants Ø 13 & 14 Worksheets 8
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VITAMINS‚ THEIR TYPES AND USES Vitamins are vital nutrients‚ indispensable to perform various tasks within the human body in order to promote optimal health and prevent various diseases. How do Vitamins work? Although required in minimal quantities these vitamins cannot be synthesised by the human body. Hence‚ they rely on easily available animal and plant sources for replenishment. These vitamins in conjunction with other nutrients help break down proteins‚ thereby stabilising metabolism‚ enabling
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University of Phoenix Material Terms and Definitions Worksheet Write brief descriptions for each of the following terms. If you use an outside source to define them‚ include an APA citation for the source. Scientific method a method of research in which a problem is identified‚ relevant dataare gathered‚ a hypothesis is formulated from these data‚ and the hypothesis is empirically tested. Environmental science The interdisciplinary study of how humanity interacts with other organisms and
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experiment 1 Analysis of Commercial Vitamin C Tablets Objective To employ titration technique to determine the content of vitamin C in commercial tablets using volumetric analysis and compare it with the manufacturers’ specifications. Introduction Deficiency of essential antioxidant Vitamin C in human will lead to scurvy. In this experiment‚ the vitamin C content of commercial tablets is determined and then compared with the manufacturers’ specifications. Vitamin C‚ ascorbic acid C6H8O6‚ reacts
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E20-1 Experiment 20 Consumer Chemistry: Vitamin C in Fruit Juices The Task The goal of this experiment is to determine the concentration of vitamin C in a range of different fruit juices (fresh and preserved) using titration and to rank these sources of vitamin C. Skills At the end of the laboratory session you should be able to: * use a pipette correctly‚ * use a pipette filler safely‚ * manipulate a burette and carry out a quantitative titration properly‚ * weigh a sample
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Vitamin D Vitamin D: Wonder Pill or Overkill? Wouldn’t it be great if one vitamin could build stronger bones and protect against diabetes‚ multiple sclerosis‚ cancer‚ heart disease‚ and depression? Or even help you lose weight? Researchers have high hopes for vitamin D -- which comes from our skin’s reaction to sunlight‚ a few foods‚ and supplements. Learn the facts in the slides ahead … and see who’s at risk for a "D" deficiency. Vitamin D Boosts Bone Health Vitamin D is critical for strong
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important vitamins found in citrus juices‚ including orange juice. Often projects find that orange juices made from frozen concentrated orange juice (FCOJ) have the highest vitamin C levels as compared to freshly squeezed or not-from-concentrate (NFC) juices. This is probably due to the fact that vitamin C degrades over time in fresh and NFC‚ but doesn’t degrade as much in FCOJ due to it being frozen until reconstitution. If one is comparing a NFC product that has been stored for about 3 weeks versus
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Community Environment Issue SCI/275 Community Environment Issue The Bay Area is a designated region in Northern California that contains popular cities such as San Francisco and San Jose‚ which are well known in the global community as breeding grounds for some of the greatest innovations. With the Bay Area being one of the most productive and populated places in California and even the United States‚ most of its residents work in these cities and are constantly struggling to afford housing
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OBJECTIVE To investigate the vitamin C content of different fruit juices. To identify which fruit juices has higher vitamin C content and the lowest vitamin C content. To determine the standard curve of vitamin C based on percentage of vitamin C. To differentiate between fresh juices and carton juices. To consider the reliability and validity of the results. PROBLEM STATEMENT Which type of fruit juices has the most vitamin C content? HYPOTHESIS The smaller the amount of the fruit juices
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