important. Rubidium is also used to make photocells. A photocell is a device for converting light energy into electrical energy. But other members of the alkali family are still preferred for this application. Barium (Ba) History Alchemists in the early middle Ages knew about some barium minerals. Smooth pebble-like
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the mass of one reactant compared to the mass of one product. Purpose: The experiment will be designed to find out the stoichiometric mole ratio of Barium Chloride and Silver Nitrate yielding a precipitate of Silver Chloride in a Barium Nitrate solution. (BaCl2 + 2AgNO3 -> Ba(NO3)2 + 2AgCl) Research Question: How will the amount of Barium Chloride and Silver Nitrate affect how much Silver Chloride is produced? Hypothesis: If there is one mole of BaCl2 in the reaction‚ then two moles
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Mixing Barium titanate is a white powder that can be mix by barium carbonate and titanium dioxide. The mixture of Barium titanate can be pressed to make the piezoelectric discs. How to mix barium carbonate with titanium dioxide ? First‚ we need to use the chemical reaction formula to calculate the molar ratio of the mixture Baco3 + Tio2 -> Batio3 + Co2 Ba:137.33 Carbon:12 Oxygen:16 Ti:47.9 Total molecular mass barium carbonate = 137.33+12+48=197.33 Total molecular mass
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1. The enema solution has been instilled. You instruct the patient to hold the solution as long as possible and a. Not flush the results of the enema. 2. The enema container should be held ____________ inches above the anus during the administration of the solution. b. 12-18 3. When giving an enema to a patient in bed‚ the best patient position for instilling the solution is the c. Left lateral Sims position. 4. The patient complains of cramping shortly after
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popular topic to discuss‚ one of the latest wellness treatments available is a coffee enema. It is important to discover what this treatment offers to the body‚ and also what type of effects it will have. A coffee enema is specifically designed to lower toxins within the body. A study was conducted for the post surgical treatment of patients with colorectal cancer in 1984 that showed that using a coffee enema has a positive effect on the colon. It promotes the activity of an enzyme group that is
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by a process called gravimetric analysis. Gravimetric analysis is the quantitative isolation of a substance by precipitation and the weighing of the precipitate. In this experiment‚ sodium sulphate was allowed to react with barium sulphate to form a white precipitate of barium sulphate. This precipitate was then washed‚ filtered and dried‚ to ensure that there are no impurities and water molecules present‚ before it was being weighed. The amount of sulphate obtained was calculated to be 0.2028g and
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Lab experiment 12 Percent of water in a hydrate The goal of Experiment 12 was to learn how to calculate the percent of water (by mass) in barium chloride and an unknown hydrate salt‚ as well as properly calculating the water of crystallization for the unknown hydrate salt. A hydrate salt is composed of anions (-) and cations (+) surrounded by a fixed number of water molecules‚ called water of crystallization. The hydrate decomposes upon heating and
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Alternative cancer therapies are an emotive subject. In this Summative assessment the main events in a hypothetical case history are recounted from a naturopathic point of view and an effective management plan for the final part of the nutritional treatment is described. To support the given treatment strategy an attempt is made to subjectively consider a critique of nutritional therapies in general and the Gerson cancer therapy in particular‚ written by Saul Green PhD‚ biochemist and science editor
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and has had all of its water removed. Purpose: The purpose of this experiment is to identify the unknown hydrate‚ selected by your teacher. Apparatus: Evaporating dish Hot plate Scale Gauze mat Tongs Scoopula Materials: barium chloride (BaCl ) → hydrate crystals 2 Procedure: 1. First‚ preheat your evaporating dish on a hot plate for two to three minutes. Your dish should be clean and dry before use. 2. 3. 4. 5. 6. 7. 8. After your evaporating dish is heated
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using semimicro scale gravimetric procedure. First by weighing the sample before starting we knew how much unknown substance we had. Then by mixing it with distilled water we made a solution in which we had a precipitate after adding 1 to1.5 ml of Barium Chloride. We also added HCL 1M before BaCl2 to eliminate the chance of formation of another precipitate such BaCO3. Then we extracted the supernatant liquid and dried out
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