For this experiment me and my lab partner didn’t finish the experiment. We only end up to adding the magnesium sulfate. We added so much magnesium sulfate‚ and ended up drying the whole product without any liquid left. We were trying to do the procedure all over again but‚ we will ended up to not finishing the experiment still due to time constrain. I will try to explain the possibility what will happen up to the end of the experiment. After measuring the 10ml graduated cylinder‚ which is 27.27g
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then placed on the clay triangle and heated with the Bunsen Burner for 3 minutes. 3. After this‚ the crucible and crucible cover were allowed to cool and were massed. 4. After getting the mass of the empty crucible and crucible cover‚ 3 grams of magnesium sulfate crystals were added to the COOL crucible. 5. The crucible‚ cover and hydrated salt were then massed all together. 6. After this‚ the crucible (containing the hydrated salt) and crucible cover (slightly askew) were placed on the clay triangle
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Chemistry Practical Report: Topic: Determining the Empirical Formula of Magnesium Oxide Patrick Doan 11 CHEM 11 26/9/08 Table of contents 1.0 Aim 1 2.0 Theory 2-3 3.0 Materials 4 4.0 Method 4 5.0 Results 4 - 5.1 Qualitative Observations 4 - 5.2 Example Calculations for each Calculated Value 5-7 -5.21 Experimental Values and Associated Errors 5-7 - 5.3 Accumulated Raw Data 8 - 5.4 Mean Experimental
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of moles will be 13 moles of oxygen to 1 mole of lead. In the experiment‚ the students will find the empirical formula of a compound containing magnesium and oxygen. Based on prior knowledge‚ the student believes that the ratio of magnesium cations to oxygen anions will be one to one. The student also believes that the ratio of moles of magnesium to moles of oxygen will not be one to one. Materials and Equipment: Equipment: ● ● ● ● ● ● ● ● ● Crucible Crucible Tongs Clay Triangle Ring Stand w/ Clamps
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Epsom salt have many uses‚ including use as bath salts‚ as a laxative and as a plant nutrient. Epsom salt contains hydrated magnesium sulphate which has the formula MgSO4.xH2O. Experiment to find the value of x in a pure sample of hydrated magnesium sulphate. The method i will use is heating a known mass of magnesium sulphate to remove the water of crystallisation. x is found by weighing before and after heating to find the mass of the water then using the moles calculations to find x. The source
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Heat of Combustion of Magnesium Background: The students were given full instructions on how to experimentally determine the enthalpy of reaction (ΔHrxn) for the combustion of magnesium ribbon‚ using Hess’s Law. Data Collection: | |Reaction 1 |Reaction 2 | | |(MgO) |(Mg)
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A The % Composition and Empirical Formula of a Hydrate: It Doesn’t Hold Water‚ Or Does It? 1. To determine the percent water in an unknown hydrate. 2. To calculate water(s) of crystallization for an unknown hydrate. 3. To determine the formula of an unknown hydrate. OBJECTIVES SKILLS Proper use of the following equipment: Dial-O-Gram balance (Laboratory Technique I)‚ electronic balance (Laboratory Technique II) and Bunsen burner (Laboratory Technique III). Dial-O-Gram balance‚ electronic
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Hydrates Analysis NAME:_____________________________________ PERIOD:_________ Prelab 1. A 6.00g sample of calcium sulfate hydrate (CaSO4.x H2O) is heated until all the water is driven off. The anhydrous compound has a mass of 4.77 g. Calculate the value of x in the formula. 2. For the data in problem number 1 above‚ what is the mass percent water in the hydrate? 3. Calculate the number of grams of water that could be obtained by heating 2.00 g
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plants. In photosynthesis‚ plants absorb carbon dioxide gas from the air‚ with energy from the sun‚ water from the soil and chlorophyll to make carbohydrates for food. Figure 13.1 – The Reaction of A wire of magnesium with Oxygen (page 342) of the textbook also shows how a wire of magnesium metal and oxygen in the
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SECTION 1 1.1 introduction A new born baby in the family is very much awaited by all parents‚ but when the baby was born premature‚ many complications to be borne with the baby. Bronchopulmonary Dysplasia is one of the complications faced by the premature baby. Singer.L et al(1997)‚mentioned in United States Bronchopulmonary Dysplasia is one of the leading cause of lung disease in low very birth weight infants(VLBW). Infants with BPD had higher rates of mental retardation‚ associated with greater
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