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Magnesium research essay
Grade 8 explain chemical reactions
Essay on magnesium
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The purpose of our experiment is to figure out the empirical formula of magnesium and oxygen once they are reacted together. Putting the piece of magnesium in the crucible with the lid somewhat open, we induce heat to have the oxygen and magnesium chemically react. The Independent Variable is the elements used, Magnesium and Oxygen. The Dependent Variable is the mass of the elements. For one thing, matter is anything that takes up space, and it is composed of miniscule particles called atoms. Different types of matter can be categorized in two sections: composition and properties. The physical properties can be observed or measured without changing the composition of matter, and in physical change, there are two properties, extensive and …show more content…
Molecular formula is based on the actual numbers of atoms of each type in the compound. An empirical formula is often calculated from elemental composition data. You can determine the empirical formula of a compound from percent composition information or by knowing the mass of each element present in the compound. The weight percentage in each of the elements present in the compound is given by the elemental composition. An empirical formula rhyme: Percent to Mass, Mass to Mole, Define by small, Multiply until …show more content…
The ending result was an average amount of 0.162(g) Magnesium in the crucible, and 0.043(g) Magnesium and Oxygen in the crucible. The ending empirical formula was MgO2. We were not able to get a correct answer for our experiment, because it messed up during the process. Our magnesium was coiled too much in the bottom of the crucible, so it wasn’t able to combust correctly. So instead, we used a total of 9 groups experiments to find an average mass and empirical
The change in enthalpy for the combustion of magnesium metal. Abstract = == ==
The mass of Mg + the mass of O2=mass of MgxOx. Knowing the mass of
the Ar for Oxygen is 16, I can find the number of moles for Magnesium
Theory: Physics can be referred to as the study of various properties of matter and energy. Matter can best be described by looking at the mass of an object. Mass is the amount of material that is in an object. Mass can be found by using a spring scale, a balance scale, or an inertial balance. Inertia is the resistance by mass to any change in its state of motion. Scientific Law states that mass and inertial forces are directly proportional. The purpose of the inertial balance is to measure the different inertias between different masses therefore providing a mathematical and very accurate method of measuring mass. Experimentation showed that if a mass was put into some form of periodic motion, the mass could be measured fairly accurately by measuring the oscillation period and comparing it to a known mass period. The relationship m1=m2T12/T22 was discovered.
The first step that we took to accomplish our goal was to put on our safety goggles and choose a lab station to work at. We received one 400ml beaker, one polyethylene pipet, two test tubes with hole rubber stoppers, two small pieces of magnesium (Mg), one thermometer and a vial of hydrochloric acid (HCl). We took the 400ml beaker and filled it about 2/3 full of water (H20) that was 18 OC. Then we measured our pieces of Mg at 1.5 cm and determined that their mass was 1.36*10-2 g. We filled the pipet 2/3 full of HCl and poured it into one of the test tubes. Then, we covered the HCl with just enough H2O so that no H2O would be displaced when the stopper was inserted. After inserting the stopper, we placed the Mg strip into the hole, inverted the test tube and placed it in the 400ml beaker. HCl is heavier than H2O, so it floated from the tube, into the bottom of the beaker, reacting with the Mg along the way to produce hydrogen gas (H2). We then measured the volume of the H2, cleaned up our equipment and performed the experiment a second time.
Investigating the effect of varying concentration on the reaction between magnesium ribbon and hydrochloric acid
To put it another way, properties are what make up an object, and substance is what the
It is found by first taking the number of grams in each element given in the problem, then converting the mass of each element into moles by the using the molar mass of the element found on the periodic table. Next you find that you divide each mole value by the smallest number of moles calculated, then round to the nearest whole number. The Empirical Formula shows the lowest possible whole number of elements in a compound. The Empirical Formula mass of a compound also refers to the sum of the atomic masses of the elements present. The Molecular Mass is a representation of the actual whole number ratio from the elements of a compound. If you divide the numbers in a molecular formula by some values to simplify them further then the empirical formula will be different from the original molecular formula. The Molecular Formula shows the how many atoms are present of each element in the molecule of the
with a tong to see if the magnesium had started to burn and also to
In 1803 this theory was finalised and stated that (1) all matter is made up of the smallest possible particles termed atoms, (2) atoms of a given element have unique characteristics and weight, and (3) three types of atoms exist: simple (elements), compound (simple molecules), and complex (complex molecules).
The Ultimate Nature of Matter. The theory of quantum mechanics has divided the atom into a number of fundamental sub-atomic particles. Although the physicist has shown that the atom is not a solid indivisible object, he has not been able to find a particle which does possess those qualities. Talk of particles, though, is misleading because the word suggests a material object.
Energy is an odd concept, it is something that is neither here nor there yet has a profound impact on everything, both organic and inorganic. However, energy surrounds us in more ways than is commonly believed; it is possible that matter is only a form of energy. In fact, according to Albert Einstein, matter and energy are different forms of the same thing (“Do Antimatter and Matter Destroy Each Other?”). Through analyzing the superposition of bosons (particles without mass) and fermions (particles with mass), transformations between energy and matter, the creation of mass, and the mass of energy, the existence of what humans consider to be matter will be questioned.
This hypothesis is based on the collision theory, which states that when particles are heated up, they have more kinetic energy. With this high amount of energy, the particles will move at a higher rate with more force, when these particles collide a reaction occurs, therefore increasing the heat increases the reaction rate. The volume and the mass of the MgCl2 formed could have been measured and weighed after the reaction and that value would have been very useful because if it was obtained, it would be easier to manually calculate the theoretical yield of H2 gas rather than using a theoretical value found online. This would have made the percentage yield more accurate.
Matter is defined as anything that occupies space and can be perceived by one or more senses; a physical body, a physical substance, or the universe as a whole. There are four distinct states of matter: solids, liquids, gases, and plasma. There are other states of matter such as Bose-Einstein condesates and neutron degenerate matter, but those states can only be found under extreme conditions.
Since the days of Aristotle, all substances have been classified into one of three physical states. A substance having a fixed volume and shape is a solid. A substance, which has a fixed volume but not a fixed shape, is a liquid; liquids assume the shape of their container but do not necessarily fill it. A substance having neither a fixed shape nor a fixed volume is a gas; gases assume both the shape and the volume of their container. The structures of gases, and their behavior, are simpler than the structures and behavior of the two condensed phases, the solids and the liquids