Pennsylvania State University Lab Report on Experiment 10- The Chemistry of Natural Waters Introduction What is water hardness? Water is extremely important to all living things and even to non-living things‚ indirectly. Therefore‚ the way water travels and gets to a place is also extremely important because its transportation methods determine the chemicals that get involved and added into the water as it travels. This relates to the hardness of water. The hardness of water is basically caused by the
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CMIS 320 Lab 1 Homework Part 1 a) A piano manufacturer wants to track all pianos it makes. Each piano has a unique serial number and a manufacturing completion date. Each instrument represents exactly one piano model‚ all of which have an identification number and model. The company produces thousands of pianos of a certain model‚ and the design is specified before any single piano exists. 1. Identify the degree and cardinalities of the relationship. Piano-Model: Cardinality: one-to-many
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Taylor Durham Nutrition 101 Mr. Oropallo Lab Report #2: Fat Extraction From Food What is a triglyceride? Draw its structure. A molecule that contains three fatty acids attached at the oxygen atoms of glycerol. What are the differences between saturated and unsaturated fats? Drawn an example of each. If all bonds are single‚ the fatty acid molecule is saturated. If there is a double bond among the carbon atoms‚ the fatty acid molecule is unsaturated. What form does each of these fats take at
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The purpose of the study was to determine the quality of the Ottawa River and identifying any human activities that may affect water quality by sampling for benthic invertebrates‚ measuring the water temperature‚ testing for pH‚ turbidity‚ dissolved oxygen‚ examining the odour‚ colour‚ and appearance of the water‚ the amount of grasses‚ shrubs‚ trees‚ and known uses of the waterway. Description: Various human activities that may affect water quality include municipal wastewater‚ urban stormwater
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1. Compare the hash values calculated for example.txt that you documented during this lab. Explain in your own words why the hash values will change when the data is modified. They change to keep authentication and integrity. 2. Why are the MD5sum and SHA1sum hash values the same every time you calculate for the “example.txt” sample fi le? What if they were different when you re-calculated the hash value at the other end? These are the same to verify authentication and integrity.
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to avoid is cross-contamination. This essay will tell you what cross-contamination is‚ how it occurs‚ what happens when you eat contaminated food and how to prevent it. To begin with‚ what is cross-contamination? Well‚ cross-contamination is when bacteria from one food is transferred to another and contaminates the other food. Usually‚ contamination occurs between a raw food and a cooked food‚ vegetables and meats‚ or for hygienic reasons. For example‚ cross-contamination can occur if the
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| Air Quality Standards | Shaunielle Tyler | | Walden University | | | The Department of Health and Environmental Control states that The Clean Air Act is a federal law which describes the responsibilities of the U.S Environmental Protection Agency (EPA) for defending and improving the nation’s air quality. The World Health Organization states that the basic requirement of human health and well-being is clean air. Each year more than 2 million premature deaths can be connected
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This type of cross-contamination is especially dangerous if raw foods come into contact with cooked foods. Here are some examples of food-to-food cross-contamination: * In a refrigerator‚ meat drippings from raw meat stored on a top shelf might drip onto cooked vegetables placed on lower shelf. * Raw chicken placed on a grill touching a steak that is being cooked. Top of Page People to Food People can also be a source of cross-contamination to foods. Some examples
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polluted water so the water will have a clarity of 0%. If a filter is built for the polluted water‚ then the waters clarity will be 0% and the pH value will be 7. The purpose for this lab is to get the polluted water to a clarity of 0%. Water pollution is playing a major role in today’s ecosystems because the water is becoming unsafe to live in and unsafe to consume. “Water pollution is any physical or chemical change in water that adversely affects organisms” (Chiras‚ 2015). When the water is dirty
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is there anything‚ which is really original and free from Appiah’s "contamination"? How are we to champion human innovation whilst trying to maintain and preserve cultural heritage and where do we draw the line? Also‚ who
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