NaBr is the bottom layer because NaBr has a density of 3210 kg/m3. For experience 4d: Question 1. Presumably I have an acidic compound and a neutral compound in the mixture. The acid is represent by RCOOH. So with the NaOH added‚ it form the sodium salt (which is soluble in water and the neutral compound is not). RCOOH goes to RCOONa. Then I separate the layers‚ add HCl to the RCOONa which forms the original acid and that is what is precipitating. If I have all of the acid removed from the mixture
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remained on the filter. Data: Item | Mass (grams) | Weighing Dish | 0.6 g | Dish + Mixture | 7.9 g | Net Mass of Mixture | 7.3 g | | Mass (Grams) | Percent of Mixture | Iron Fillings | 1.8g | 26.9% | Sand | 1.5g | 22.4% | Table Salt | 1.9g | 28.4% | Benzoic Acid | 1.5g | 22.4% | Total: | 6.7g | | Observations: Some things I observed during this laboratory include the magnet not picking up some of the smaller iron particles without getting really close to the solids
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Section 4 Experiment#: PROP0375 Separating the Components of a Ternary Mixture Hassan Alhammad 2554122 T.A Katherine Turner 9/11/2014 Introduction The purpose of the experiment is to separate components of mixture of sand (SiO2)‚ salt (NaCl)‚ and chalk (CaCO3). 1. CaCO3+2HCl-----CaCl2+CO2+H2O 2. CaCl2+K2CO3====CaCO3+2KCl The first reaction shows the separation of calcium carbonate from the mixture. In the second reaction we use the product of the first reaction (CaCl2) and change
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mathematical error analysis was needed. Discussion This experiment was designed to acquaint one with the techniques of quantitative transfer‚ volumetric glassware and electric balances. Carefully measure the weight of the 250ml beaker as well as KCl salt without the use of weighing paper or spatulas. Add 25ml of deionized
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weight loss‚ strengthen the nervous system‚ and help with the production of white blood cells‚ all due to high levels of vitamin B-6 7. Strengthen your blood and relieve anemia with the added iron from bananas 8. High in potassium and low in salt‚ bananas are officially recognized by the FDA as being able to lower blood pressure‚ and protect against heart attack and stroke Eating bananas aids digestion 9. Rich in pectin‚ bananas aid digestion and gently chelate toxins and heavy metals
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Hacker’s GUIDE……………. INDEX 1. Ultimate step by step guide in becoming a HACKER 2. Hacking for Dummies – I 3. Hacking for Dummies - II Ultimate Step by Step guide to become a hacker Submitted to the Hideout by IceKool Document Modified by kM June 16th‚ 1997 Disclaimer: I do not take any responsibilities for actions that you pose using this file. Therefore do not blame me for whatever happens. This is for informational purposes only. About the Author: My name is IceKool. I live in Va. I love
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Preventing Muscle Cramps Caused By Dehydration John Doe GEN/200 April 18‚ 2011 John Deere Preventing Muscle Cramps Caused By Dehydration Muscles cramps and spasms can be annoying. If the body is not taking in enough daily fluids it can cause major health issues in a short amount of time. Fluids as well as other contributing factors such as age‚ has a large influence on muscles. People can often suffer from muscle weakness and cramping from dehydration. Exercising can also reduce
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Diffusion: Temperature’s Effect on Diffusion: We added potassium to a two tubes with different temperatures: Temperature Result Room Temperature Slow change in Color Boiled water Fast change in Color Conclusion : The increase in temperature assists in increasing the speed of diffusion. Diffusion of Glucose and Starch: A. Color Change: State/Results In the Tube In the Beaker Color Glucose Color Glucose Initial State (Before placing tube into graduated cylinder) Transparent Yes
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Symbol H+ Li+ Na+ K+ Rb+ Cs+ Be2+ Mg2+ Ca2+ Sr2+ Ba2+ Ra2+ Zn2+ Symbol Cu+ Cu2+ Fe2+ Fe3+ Sn2+ Sn4+ Cr2+ Cr3+ Mn2+ Mn3+ Symbols and Charges for Monoatomic Ions Name Symbol Name hydrogen ion H¯ hydride lithium ion F¯ fluoride Note that the sodium ion Cl¯ chloride letters in an ion’s potassium ion Br¯ bromide name before the rubidium ion I¯ iodide -ide ending is 2¯ cesium ion O oxide the stem. For 2¯ beryllium ion S sulfide example‚ the stem
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MEMORANDUM From: To: Subject: Calcium Chloride Best Purchase for Deicing Enclosures: (1) Data Record (2) Data Treatment (3) Environment Impact Research After hours of vigorous examination‚ we have come to the conclusion that calcium chloride (CaCl2) would be the best deicer to use on a naval base over sodium chloride (NaCl) and ethylene glycol (C2H6O2). In order to melt ice‚ deicers lower the freezing point so that the ice melts at lower temperatures. CaCl2 has
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