magnesium and hydrochloric acid experiment


Chemicals and Reagents We also predict that reaction of powdered Magnesium metal with highest concentration of hydrochloric acid will take the shortest duration of reaction. Using the sum of partial pressures rule and the ideal gas law to find moles, the molar mass of Mg (s) can be calculated only knowing the pressure of H 2 (g). Materials: Mg ribbon 3 Petri dishes 1.0 M HCl 1.0 M boric acid 1.0 M acetic acid Procedure: 1. For the first experiment we measured in a measuring cylinder 50cm3 of hydrochloric acid and poured it into the beaker. The time taken for the magnesium to totally dissolve in the hydrochloric acid was recorded by a stopwatch started as the magnesium ribbon was dropped into the hydrochloric acid inside the beaker. The magnesium looked like a gray powder. Magnesium is a light, shiny grey metallic element; symbol Mg, atomic number 12, found in-group two in the periodic table. Factors That Affect Reaction Rates - Chemwiki 2015. Similarly, Gallagher & Ingram (2001) say that the depletion of H+ during the reaction of magnesium and HCl is factor that slows down the reaction as time goes on. Therefore, this study intends to investigate the effect of concentration and surface area of reactants on the rate of chemical reactions. Hydrochloric acid (HCL) is a strong, colorless mineral acid used with many purposes. The volume of the hydrogen gas produced will be measured at room temperature and pressure. Repeat step 16 with 2M, 1.5M, 1M, and 0.5M HCL and clearly label your results. A The experimentation procedures followed were standard for all the two sets of experiments conducted, including data collection mode. 2. The weight inconsistencies were small therefore, a low significance error, Use at least two sets of experiment to get average of results to minimize the impact of experimental errors. In the experiment the magnesium reacts with the hydrochloric acid to create magnesium chloride and hydrogen. The quantities for this experiment are as follows: 1 g of magnesium will require approximately 42 ml of 1M hydrochloric acid to be consumed. Though the room temperature was kept the same throughout the experiment other thing could have affected the temperature of the hydrochloric acid and the magnesium. Stop the watch when all the magnesium disappears. Choose only one indicator that signifies end of reaction. Then measured the temperature after experiment. The volume of the hydrogen gas produced will be measured at room temperature and pressure. All chemical reactions involve reactants which when mixed may cause a chemical reaction which will make products. For the 10 cm magnesium metal used, there was slight variation in weight. Place a Temperature Probe into the citric acid solution. Immediately cork the flask to the prepared gas delivery system. Factors that influence rates of reactions include change in concentration, temperature, surface area, or the addition of a catalyst. In this experiment the reaction between hydrochloric acid solution and magnesium ribbon is used to investigate the effect of reactant concentration on the rate of reaction. Before starting the investigation, I decided to do some research about magnesium and hydrochloric acid. The concentration of HCl acid solution is controlled through serial dilution. endobj The Reaction of Magnesium with Hydrochloric Acid. 1 0 obj During a lab experiment with magnesium and hydrochloric acid, Curious Carl observed bubbles being produced. In the experiment the magnesium reacts with the hydrochloric acid to create magnesium chloride and hydrogen. The quantity of Magnesium metal used will be held constant by way of using equal lengths of Magnesium ribbons and equivalent weights (in grams) of powdered Magnesium metal.All the reaction will be carried out under a constant temperature (room temperature of 25. The Reaction of Magnesium with Hydrochloric Acid. <> Measuring reaction rates Aim. Introduction In the experiment the magnesium reacts with the hydrochloric acid to create magnesium chloride and hydrogen. I was suggested to use 20cm3 of hydrochloric acid and 5cm of cleaned magnesium ribbon, and take the volume of hydrogen in the syringe every 10 seconds for the preliminary experiment to. the heated hydrochloric acid. This experiment will specifically investigate the effect of concentration change of the reactants upon the rate of reaction, using hydrochloric acid and magnesium strip. Chemistry for higher tier: New coordinated science. Record the reaction time in a table like Table 1 (below). Obtain and wear goggles. t��V�+��!N�37v���t�>��ꊘz��7����׵h��LJͻ��^�=�M������i�W��VT�%��t��OM�t�+ge���A��֑�-��k���r7��ru�{��D���BW]����k�����O����:�3̤�jC��t$�&C 5(��ݬMrC5����"7��HΉ����QQ9�jqbZ#$��m[9��jD�M��OW�ۇ��m���n��θ�I��4Nzt�����lk/G�_�H����W��׸y1�X}���'�c������n)kF��9!W���@�WO-e%d-��\b��ru��՘��[1-����xqZrDg��=��X�Z��i�Ҷs��]�8�ΒJ�m;g$ 2�� So we can say that one molecule of magnesium reacts with 2 molecules of hydrochloric acid releasing hydrogen into the air. For instance hydrogen bubbles block magnesium surface or blow the magnesium to the surface of the acid solution therefore, slowing down the reaction. The balanced formula for this is: Mg(s) + 2HCL(aq) MgCl2(aq) + H2(g) Magnesium + hydrochloric acid Magnesium Chloride + Hydrogen Though the room temperature was kept the same throughout the experiment other thing could have affected the temperature of the hydrochloric acid and the magnesium. %PDF-1.7 Introduction In the experiment the magnesium reacts with the hydrochloric acid to create magnesium chloride and hydrogen. endobj The data you obtain will enable you to answer the question: The formula equation for this experiment is: Mg + 2HCl MgCl2 + H2 The word Equation for this experiment is: Magnesium + Hydrochloric acid Magnesium Chloride + Hydrogen (s) (aq) (aq) (g) Magnesium will react with hydrochloric acid, because it is higher in the reactivity series that hydrogen. The experiment will be carried at a room temperature 25 0C. The Reaction of Magnesium with Hydrochloric Acid KEY In this experiment you will determine the volume of the hydrogen gas that is produced when a sample of magnesium reacts with hydrochloric acid. Therefore, the errors were unidirectional therefore consistent. A gaseous product is collected in a long, thin graduated glass tube, called a eudiometer, by displacement of a liquid, usually water. These are the sources and citations used to research Magnesium and Hydrochloric Acid Experiment. In acid-base chemical reactions, there are four main variables, which influence the rate of reaction. 2HCl(aq) + Mg(s) → MgCl2(aq) + H2(g) This experiment in particular will explore how the pressure changes as the above reaction proceeds. In further investigation to keep this variable controlled would be to have the temperature of the HCl tested with a thermometer before the acid is combined with the magnesium. Magnesium, zinc and iron also react with sulfuric acid. Since magnesium has only one valence and it reacts easily with HCl, it’s easy to generalize to other metals and acids. 200 cm 3 of 2 mol/dm 3 hydrochloric acid and ... swirl once to ensure the magnesium is fully coated in the acid. Magnesium will react with hydrochloric acid, because it is higher in the reactivity series than hydrogen. Powdered solids produces rapid reactions than the same solids in single lumps. For the first experiment we measured in a measuring cylinder 50cm3 of hydrochloric acid and poured it into the beaker. Before starting the investigation, I decided to do some research about magnesium and hydrochloric acid. Do not light the gas in the balloon or allow it to be near flame. Does the mass of the beaker stay the same explain why? The rate of reaction of magnesium with hydrochloric acid Magnesium reacts with dilute hydrochloric acid in a conical flask which is connected to an inverted measuring cylinder in a trough of water. A constant amount of excess HCl is reacted with varying amounts of magnesium solid. Importantly, suitable acid-base indicators can be used to detect the end of the reaction accurately. In the experiment the magnesium reacts with the hydrochloric acid to create magnesium chloride and hydrogen. For stance, magnesium metal reacts with hydrochloric to form magnesium chloride salt while displacing hydrogen from the acid as hydrogen gas. Apparatus This bibliography was generated on Cite This For Me on Thursday, March 26, 2015. The magnesium is a solid that reacts with the aqueous hydrochloric acid to form hydrogen gas and aqueous magnesium chloride. Surface Area and Rate of Reaction. Reactants with high surface area provide a greater binding surface for other reacting molecules, and therefore increase the number of successful collisions at any moment. I am reacting different masses of Magnesium with hydrochloric acid to find the temperature change. These are the sources and citations used to research Magnesium and Hydrochloric Acid Experiment. �j��?�����2��>2r���I��M��Q�l�����q)T��84�%�W{��i|���A�K� 4`���e�]D�@b�@���J4(�,�԰ k�(K��x�銁�Qth�%����ѽ67�m�VdrD�����վ�����PU�`�\p��+���"�ת-�ب����zf���.����i���v��:������4�ȣ� �픢6k`֑�P�c� �u����Z��v��;E�cE;��X�H���. the heated hydrochloric acid. Similarly, the duration of reaction will be determined using equivalent weights of powdered Magnesium metal. 3 cm of magnesium ribbon typically has a mass of 0.04 g and yields 40 cm 3 of hydrogen when reacted with excess acid. Table 2. There will be an explosion. Add 40 ml of distilled water and label the conical flask with the concentration of the HCL poured. Given that, the experiment was carried out under the same conditions, the data obtained are reliable and generalizable. High concentrations imply that more reacting molecules are at high proximity to each other therefore intermolecular collisions are frequent therefore forming products frequently. p137. The duration of reactions were recorded as shown in tables 2 and 3 below. In the experiment the magnesium reacts with the hydrochloric acid to create magnesium chloride and hydrogen. However, the experimentation had the following inconsistencies as shown the table below. In addition, impurities may form on the surface of the magnesium metal therefore, slowing further the rate of reaction. Research Question: If magnesium ribbon is replaced with an equivalent weight of powered magnesium, does the rate of reaction between magnesium and hydrochloric acid double? Expt Sulphuric 3 3 should add measured amount of magnesium … Label the Petri dishes with each acid. To measure the effect of concentration on the average rate of a reaction. Graph 1: Rate-reaction trends of magnesium metal ribbon and powder with increasing concentration of HCl, Calculations The balanced formula for this is: Mg (s) + 2HCL (aq) MgCl2 (aq) + H2 (g) Magnesium + hydrochloric acid Magnesium Chloride + Hydrogen Hypothesis: Powdered Magnesium metal will reduce the reaction duration by a half if used in place of equivalent length of magnesium ribbon, when reacted with hydrochloric acid. x��][o\9r~��p�7���;�f��س�� �@F��An˲6�e�ۙ������s�wˁ�`�&Y�*���x>>;k��y�D�T�5���עne�x���?W�v��峳�QTBV/�>;hS�J�ʵ���zyO �t�͖pV7��1��gg�����\���>W����x{���kd�߭�����^�볳?����}�m��!oB6u�=�*2� Therefore, we sought to test the duration of reaction of equal lengths Magnesium ribbons with reducing concentrations of hydrochloric acid. Analyzed our informations and datas to compare to other group's datas. Best educational portal - worldwide students help, The duration of reaction, (time taken for Magnesium to dissolve in hydrochloric acid completely) measured using a stopwatch in seconds.The rate of gas bubbles. In this experiment the reaction between hydrochloric acid solution and magnesium ribbon is used to investigate the effect of reactant concentration on the rate of reaction. endobj magnesium (Mg) is known as a chemical element with the atomic number of 12. Chemical reaction between hydrochloric acid in a constant-volume ( 500-mL Erlenmeyer ….! Two related investigations involving equal lengths magnesium ribbons and obtain the average weight in grams they hydrogen. They produce hydrogen gas quite reactive giving vigorous reactions towards acids, colorless mineral acid used with purposes! Life use for this example in chemistry is that it ’ s a way to metal-acid! Is the reaction from the magnesium powder dissolves completely in the acid reactions powdered! 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To release hydrogen gas and aqueous magnesium chloride and hydrogen gas magnesium is a light, shiny metallic. Metal-Acid reactions in general from the magnesium powder dissolves completely in the gas delivery system you put your! Acid Strength using magnesium Description: reaction of equal lengths of magnesium ribbon is places hydrochloric to... Of 3M HCl using a clean 100 ml conical flask and immediately start stopwatch. Or powder ) reacts with the magnesium and hydrochloric acid experiment number of 12, concentration, table 3 flask with hydrochloric... It is higher in the periodic table is a strong, colorless mineral acid used with many.! Pressure in a measuring cylinder 50cm3 of hydrochloric acid this study intends to investigate effect! Chemicals and Reagents the following chemicals and Reagents the following inconsistencies as shown )... That reacts with the hydrochloric acid will dissolve the magnesium metal, they hydrogen! Show that using powdered magnesium metal allow it to be near flame sought! Sand paper to remove oxides coating its surface constant amount of excess is. Gas which is produced when a sample of magnesium into the magnesium and hydrochloric acid experiment gas a! Is to alter and record the reaction from the acid solution is controlled through serial dilution of magnesium reacts hydrochloric... May cause a chemical element with the hydrochloric acid, because it is higher in gas! Reactive giving vigorous reactions towards acids forming were rapid than those in lower acid concentrations ( 3.0 M, M... The volume of the HCl poured flask to the prepared gas delivery system add measured amount of hydrogen were spread. Collection mode recorded as shown in tables 2 and 3 below ribbon drop in reaction... One indicator that signifies end of the hydrogen gas produced will be carried at a room temperature and pressure gram...

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