Determining the Empirical Formula of a Compound: Burning Magnesium Lab Purpose: To experimentally determine the percent composition of a reaction product. Directions: Work in teams of three. The directions for this lab are on a separate sheet of paper at your lab bench. Make sure that everyone in your group understands the process and purpose before you get started. Assign tasks. Everyone in the group will be expected to contribute at the same level of participation‚ and for this experiment
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Lab Report Background Information: Magnesium is an alkaline earth metal that has the symbol Mg. Magnesium is a fairly strong‚ silvery-white‚ light-weight metal (one third lighter than aluminum). In a powder‚ it heats and ignites when exposed to moisture and burns with a white flame that is harmful to the eyes. It is difficult to ignite in bulk‚ but once ignited‚ it is difficult to extinguish. Magnesium Ribbon is a long strip of magnesium metal about 3 millimeters wide and 10 meters long with
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changes involved in burning magnesium metal. Materials Stirring rod Retort stand Ring clamp Clay triangle Crucible and lid Bunsen burner Flint lighter Balance Crucible tongs 40 cm of magnesium ribbon Method 1. Find the mass of a clean crucible and lid. USE THE SAME BALANCE DURING THE ENTIRE EXPERIMENT. 2. Curl the magnesium ribbon around a pencil to make a size that just fits inside the crucible. Do not curl the ribbon too tightly. 3. Describe the magnesium ribbon. 4. Find
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of hydrogen gas is reliant on the number of moles of magnesium combined with excess hydrochloric acid. In simpler terms‚ the excess
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The Law of Definite Proportions states that a chemical compound contains the same element in exactly the same proportions by mass regardless of the size of the sample or source of the compound. This relates to the magnesium oxide lab because we tested out this theory to see if it is true that the law of definite proportions says that a chemical compound contains the same element in exactly the same proportions by mass regardless of the size of the sample or source of the compound. In this experiment
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Mass of Magnesium(Mg) (g) | Volume of Hydrogen (H₂) (cm³) | 1st trial | 0.040 | 39.9 | 2nd trial | 0.040 | 40.3 | 3rd trial | 0.035 | 36.5 | Quantitative data: The Magnesium was silvery-white‚ lustrous and relatively flexible before being placed in the burette. Whilst reacting with the hydrochloric acid‚ it dissolved and bubbles were visible. The hydrochloric acid slowly diffused downwards. Calculations: Volume of un-diffused hydrochloric acid = 25 cm³ Average mass of magnesium = 0.038
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Composition of Magnesium Oxide Aleshia Otieno Mr. Taylor SCH3U-01 Lab #4 Monday‚ November 17‚ 2014 Introduction Percentage composition is the percentage of a formula mass represented by each element. Percentage composition compares the mass of one part of a substance to the mass of the whole. The law of definite proportions states that a specific compound always contains the same amount of elements in fixed proportions by mass. By finding the percent composition of magnesium oxide one will
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Victoria MacDonald SCH3U Zegil Due May 5th‚ 2017 Magnesium Oxide Lab Purpose: To determine the composition by mass of magnesium oxide‚ the percentage composition‚ and the percentage yield. Hypothesis: The law of definite proportions states that a chemical compound always contains the same amount of proportions of elements by mass. Based on the law of definite proportions‚ the percentage composition of magnesium oxide should be 60.3% magnesium and 39.7% oxygen. Prediction: Based on the law of
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iLab‚ Week # 3 ATOMIC WEIGHT OF MAGNESIUM LAB Introduction The purpose of this lab experiment is to determine the atomic weight of magnesium by measuring the amount of hydrogen gas evolved when hydrochloric acid reacts with magnesium. The reaction is as followed: Mg + 2HCL H2 + Mg2+(aq) + 2Cl-(aq) In this experiment there is a one to one relationship between the number of moles of hydrogen gas evolved and the moles of magnesium metal consumed in the reaction. Therefore in the finding of
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Chemistry SL Magnesium Oxide Lab Report Rashpreet Singh Date Performed: November 6‚ 2014 Research Question: To determine the empirical formula of the compound which forms between magnesium and oxygen. Design: The following figure represents the experiments lab setup‚ visualize the equipment used. Materials: Done 1. Ceramic evaporating dish 2. Electronic balance 3. Bunsen burner 4. Retort stand‚ ring clamp‚ clay triangle 5. Sand Paper 6. Tongs 7. Magnesium Ribbon Safety: Done 1. The duration
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