Abstract: ------------------------------------------------- ------------------------------------------------- The aim of this lab was to determine the volume of one mole of hydrogen gas at STP (standard temperature and pressure). In the experiment‚ a magnesium ribbon was placed at the bottom of an eudiometer tube and allowed to react with 2M hydrochloric acid. The volume of hydrochloric displacement was measured and calculations determined the molar volume of hydrogen gas produced inside the eudiometer
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force and form a strong ionic bond to form sodium chloride (NaCl). Na - (e) = Na(+) Cl + (e) = Cl(-) Na(+) + Cl(-) = NaCl (2) Magnesium Oxide Magnesium Oxide is an ionic compound formed by the reaction between the metal magnesium and non-metal oxygen. During the reaction two electron is transferred from each magnesium atom to each oxygen atom. Magnesium atom with an electron arrangement of 2.8.2 is not stable thus it has to donate two electron to achieve
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Breast cancer will met to the bone and brain lung and liver Risk factors: menarche b4 12 menopause after 55 obesity high fat diet family hist 1st degree relative birth of 1st child after 30 birth control pills and hrt ( Dr should be notified cause can make breast dense and harder to image) S/S: lumps in breast increased vascularity breast pain or soreness nipple retraction or ulceration Screening: breast self exam 7-10 days after menses
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molecular oxides on the right. Sodium peroxide‚ magnesium oxide and aluminum oxide are metallic oxide which have high melting and boiling point compared to other period 3 oxide. This is due to their giant ionic structure and the strong ionic bond. Strong ionic bond in the molecule need more energy to overcome it. Therefore‚ the more energy required‚ the higher the melting and boiling point. Aluminum oxide will have higher melting and boiling point than magnesium oxide because Al3+ ions having
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spontaneous rupture of membranes and was admitted with a blood pressure ranging in the 180’s for systolic and 100’s-110’s for diastolic. She also had increased amounts of protein in her urine which is a warning sign for renal damage. She was placed on magnesium sulfate to help treat her hypertension and as prophylaxis for seizures. She stated she was unaware of her blood pressure until she was admitted. She also stated she is very active and is involved in high school sports and coaching and was very
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before‚ during‚ and after a reaction of Sulfuric acid and Magnesium ribbon takes place in the calorimeter reaction test tube. Two trial experiments were preformed. The average of both trials was calculated to be -363.67 kJ/mol‚ which is compared to the theoretical yield of enthalpy change; -464.2 kJ/mol. Lab partner was John Grek. Results: Table 1 Change in volume in calorimeter after adding magnesium ribbon to Sulfuric acid
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Novel Magnesium Alloys for Hydrogen Storage Stephanie Moroz‚ Hydrexia Pty Ltd‚ Brisbane‚ Australia Xin Fu Tan‚ Hydrexia Pty Ltd‚ Brisbane‚ Australia Andrew Duguid‚ Hydrexia Pty Ltd‚ Brisbane‚ Australia Hydrogen has many industrial applications today where it is used for its chemical properties‚ and it may see considerable future growth as an energy carrier for materials handling equipment‚ fuel cell vehicles‚ and renewable energy storage. One limitation to the growth of these markets is the
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found to be increased with respect to time. The maximum concentration of leached calcium was found at 45th day of experiment as 450 ppm. Magnesium Magnesium was not found to be present in leachate collected at 10th day of column experiment. At 20th day of experiment it was observed in very small amount as 6.2 ppm. While at 30th day and 45th day of experiment‚ magnesium concentration in leachate was found as 70 ppm and 150 ppm respectively. The minimum concentration of
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reaction to proceed for a total of 15 seconds. 5. Placed the glowing splint into the test tube 6. Recorded the results Part 2: Magnesium strip and Hydrochloric acid 1. Poured 3mL of hydrochloric acid into a test tube 2. Placed the magnesium strip into the hydrochloric acid into the tube and immediately covered the tube with a rubber stopper. 3. Allowed the magnesium strip to dissolve completely. 4. Carefully inserted a burning splint into the test tube. 5. Recorded the results. Part 3:
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than cast iron and aluminum alloys‚ while retaining the necessary strength to withstand the forces of an engine. As of late‚ new manufacturing processes have been developed that have engendered two new alloys suitable for use in an engine block‚ magnesium alloy AMC-SC1 and compacted graphite cast iron (CGI). In this paper‚ the functional requirements of the engine block‚ the processes used to manufacture the part‚ and the mechanical properties of the alloys will be discussed. 1. Introduction
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