magnesium and hydrochloric acid experiment

He identified the gas as being hydrogen. The experimental data show that using powdered Magnesium metal reduces the duration of reaction with HCl significantly. Does the mass of the beaker stay the same explain why? Magnesium metal (in form of a ribbon or powder) reacts with acids rapidly than water liberating hydrogen gas. Repeat step 16 with 2M, 1.5M, 1M, and 0.5M HCL and clearly label your results. 3 0 obj 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. 2. 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�� Clean the Magnesium ribbon using a sand paper to remove oxides coating its surface. 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. Therefore, this study intends to investigate the effect of concentration and surface area of reactants on the rate of chemical reactions. This is because the hydrogen ions (H+) from the acid I have a large binding surface on magnesium metal but later, the surface area diminishes due to other factors in the reaction. Place about 5cm depth of the acid in each of the five test tubes; Place a small piece of each of the three metals above. A constant amount of excess HCl is reacted with varying amounts of magnesium solid. The magnesium is a solid that reacts with the aqueous hydrochloric acid to form hydrogen gas and aqueous magnesium chloride. This experiment determines the stoichiometry of a reaction of magnesium and HCl by measuring the pressure of the hydrogen gas produced using a PASCO Absolute Pressure Sensor and a PASCO Science Workshop 500 computer interface. Introduction In the experiment the magnesium reacts with the hydrochloric acid to create magnesium chloride and hydrogen. The volume of the hydrogen gas produced will be measured at room temperature and pressure. This will reduce reaction errors related to impurities. Magnesium ribbon = 37+51+77+158+201/S = 104.8 sec The magnesium looked like a gray powder. Measure 40 ml of 3M HCl using a clean dry measuring cylinder and pour into a clean 100 ml conical flask. 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. Mg (s) + 2HCL (aq) MgCl2 (aq) + H2 (g) Magnesium + hydrochloric acid Magnesium Chloride + Hydrogen Magnesium will react with hydrochloric acid, because it is higher in the reactivity series than hydrogen. Through this experiment, we have tested the process in which the time of reaction can be acquired through the undertaking of a chemical reaction, in this case, one between hydrochloric acid and magnesium. Zinc and iron also react with hydrochloric acid. Although we had predicted and hypothesized that the duration of the reaction would be reduced by a half, the data partially supported the hypothesis since the data was 89.1% close to what we predicted. The reaction from the magnesium ribbon and heated hydrochloric acid produced a large amount of hydrogen bubbles. Before starting the investigation, I decided to do some research about magnesium and hydrochloric acid. The chemical reaction between hydrochloric acid and magnesium produces magnesium chloride and hydrogen gas. 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. Surface Area and Rate of Reaction. Temperature influences the rates of reaction through kinetic energy, such that high temperatures increase the kinetic energy of reacting molecules therefore causing frequent collisions, which form products faster. The experiment will be carried at a room temperature 25 0C. Chosen experiment: The task is to alter and record the different temperatures when magnesium ribbon is places hydrochloric acid… 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? In the experiment the magnesium reacts with the hydrochloric acid to create magnesium chloride and hydrogen. I am reacting different masses of Magnesium with hydrochloric acid to find the temperature change. Therefore, the errors were unidirectional therefore consistent. The balanced formula for this is: Mg(s) + 2HCL(aq) MgCl2(aq) + H2(g) Magnesium + hydrochloric acid Magnesium Chloride + Hydrogen. The volume of the hydrogen gas produced will be measured at room temperature and pressure. Part I Citric Acid plus Baking Soda 2. In-text: (Factors That Affect Reaction Rates - … develop a relationship between the mass of magnesium reacted and the volume of … Magnesium reacts with hydrochloric acid according to the equation: Mg(s) + 2 HCl(aq) --> MgCl 2 (aq) + H 2 (g) This demonstration can be used to illustrate the characteristic reaction of metals with acid, a single replacement reaction, or to demonstrate the generation of hydrogen gas. THE EFFECT OF SURFACE AREA ON REACTION RATES. In this experiment you will determine the volume of the hydrogen gas which is produced when a sample of magnesium reacts with hydrochloric acid. All chemical reactions involve reactants which when mixed may cause a chemical reaction which will make products. These are the sources and citations used to research Magnesium and Hydrochloric Acid Experiment. High concentrations imply that more reacting molecules are at high proximity to each other therefore intermolecular collisions are frequent therefore forming products frequently. Experiment 5 Reaction of Magnesium with Hydrochloric Acid OUTCOMES After completing this experiment, the student should be able to: develop a procedure for generating and measuring a gas in a reaction. The volume of the hydrogen gas produced will be measured at room temperature and pressure. Monitor the reaction progress closely and stop your running stopwatch when the Magnesium ribbon completely dissolves in the acid and record the reaction duration in seconds in a data sheet. A These include the presence or absence of catalyst, temperature, concentration, and surface area of reactants. This experiment will specifically investigate the effect of concentration change of the reactants upon the rate of reaction, using hydrochloric acid and magnesium strip. In this reaction, the magnesium and acid are gradually used up. (2002). Reset your stopwatch, a repeat steps 9, 10 and 11 for the subsequent acids. 200 cm 3 of 2 mol/dm 3 hydrochloric acid and ... swirl once to ensure the magnesium is fully coated in the acid. This is as shown in the equation below: 2HCl (aq) + Mg (s) => MgCl2 (aq) + H2 (g). The balanced formula for this is: Mg(s) + 2HCL(aq) MgCl2(aq) + H2(g) Magnesium + hydrochloric acid Magnesium Chloride + Hydrogen. This bibliography was generated on Cite This For Me on Thursday, March 26, 2015. Then measured the temperature after experiment. Chemistry for higher tier: New coordinated science. %���� Aim: To examine the reactivity of metals with dilute hydrochloric acid Materials: 5 test tubes, dilute hydrochloric acid, magnesium, zinc, iron, lead, copper Method. Prediction In my case the reactants are hydrochloric acid and magnesium ribbon. Hydrochloric acid (HCL) is a strong, colorless mineral acid used with many purposes. However, the experimentation had the following inconsistencies as shown the table below. Therefore, we sought to test the duration of reaction of equal lengths Magnesium ribbons with reducing concentrations of hydrochloric acid. 2. The most rapid gas bubbles were observed in the acid reactions with powdered Magnesium metal. In-text: (Factors That Affect Reaction Rates - Chemwiki, 2015) We also predict that reaction of powdered Magnesium metal with highest concentration of hydrochloric acid will take the shortest duration of reaction. Website. In the experiment the magnesium reacts with the hydrochloric acid to create magnesium chloride and hydrogen. To determine the hypothesis, you would first find the time of reaction actually effected by the concentration of HCL solution. Concentration of acid (M) Reaction time (s) time 1 (s–1) 2.0 1.6 1.2 0.8 0.4 3. In the reaction between hydrochloric acid and magnesium, the hydrochloric acid will dissolve the magnesium and produce hydrogen gas. <> For instance hydrogen bubbles block magnesium surface or blow the magnesium to the surface of the acid solution therefore, slowing down the reaction. Stronger acids produce more H 2 bubbles as Mg dissolves in the acidic solution. The aim of this experiment is to verify the effects of surface area of solid reactants and concentration of aqueous reactants on the rates of acid-base chemical reactions. The experiment procedure was divided into two related investigations involving equal lengths of Magnesium ribbons and equal amounts of powdered Magnesium metal. Determination of end of reaction was sometimes uncertain. Reset your stopwatch timer and prepare a gas delivery system including water bath as shown figure one below. 1�6��ԗ�EF\��ۚ�%|���`z��Z�J*R�J����d�I�;r�s����jO��t^W�t��v�WQ�fk� ƽ����n�D>���$%(��՘�����O���� �qL�!�Y���j�P��*MD[r����[=�C��r Q��c ���w��d��V7W�ڮy�E=�pwG+@ن2w�o�}v{J�ڴ�& Chemicals and Reagents 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. 1. From the experimentation the aims of the experimentation have been achieved. The flammability of hydrogen gas can be demonstrated by carefully holding a match or fireplace lighter up to the popping … 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. Therefore, we sought to test the duration of reaction of equal lengths Magnesium ribbons with reducing concentrations of hydrochloric acid. First, repair your working bench by simply removing unnecessary materials. Given that, powdered Magnesium metal has a high surface area than equivalent lengths of Magnesium ribbon, we predict that the former will have shorter duration of reaction with hydrochloric acid than the latter. Factors That Affect Reaction Rates - Chemwiki 2015. Place a Temperature Probe into the citric acid solution. There will be an explosion. In the experiment the magnesium reacts with the hydrochloric acid to create magnesium chloride and hydrogen. Barrans, R. E. (2012, March). Importantly, suitable acid-base indicators can be used to detect the end of the reaction accurately. Wrap the magnesium pieces immediately in an aluminum foil to prevent them from being re-oxidized. A. The balanced formula for this is: Mg (s) + 2HCL (aq) MgCl2 (aq) + H2 (g) Magnesium + hydrochloric acid Magnesium Chloride + Hydrogen This single replacement reaction is a classic example of a metal reacting in an acid to release hydrogen gas. 2 0 obj Magnesium and Hydrochloric Acid Introduction For chemical reactions involving gases, gas volume measurements provide a convenient means of determining stoichiometric relationships. 4 0 obj Website. develop a relationship between the mass of magnesium reacted and the volume of … • The gas produced was collected in a gas syringe (as shown opposite) so that its volume could be measured. However, Barrans (2012) highlights that the reaction rate between magnesium metal and HCl follows first order kinetics. Magnesium will react with hydrochloric acid, because it is higher in the reactivity series than hydrogen. Figure 1: Experimental set-up of HCl-Magnesium reaction. By inducing a chemical reaction by reacting a strip of magnesium to hydrochloric acid, the time of the hydrogen gas reacted with magnesium can be acquired through a series of calculations. Before starting the investigation, I decided to do some research about magnesium and hydrochloric acid. Measuring reaction rates Aim. The duration of reactions were recorded as shown in tables 2 and 3 below. 2. %PDF-1.7 The products are a salt (in this case a sulfate) and hydrogen. For the first experiment we measured in a measuring cylinder 50cm3 of hydrochloric acid and poured it into the beaker. Powdered solids produces rapid reactions than the same solids in single lumps. Add 40 ml of distilled water and label the conical flask with the concentration of the HCL poured. <> endobj For the 10 cm magnesium metal used, there was slight variation in weight. In the experiment the magnesium reacts with the hydrochloric acid to create magnesium chloride and hydrogen. Concentration of acid (M) Reaction time (s) time 1 (s–1) 2.0 1.6 1.2 0.8 0.4 3. The main substances that were used in the experiment were hydrochloric acid (HCL) and magnesium ribbon(Mg) when these materials combined there was a chemical reaction, the reaction was that there was bubbling and fizzing when the magnesium dissolved, there was a pattern when the temperatures changed, the molecules in the acid would change speed cause the reaction to be either fast or slow, … <> The experiment will be carried at a room temperature 25 0C. stream 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. 1 0 obj In this experiment you will determine the volume of the hydrogen gas which is produced when a sample of magnesium reacts with hydrochloric acid. 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. Given that, the experiment was carried out under the same conditions, the data obtained are reliable and generalizable. 50 cm 3 of 1M hydrochloric acid is a six-fold excess of acid. The balanced formula for this is: Mg(s) + 2HCL(aq) MgCl2(aq) + H2(g) Magnesium + hydrochloric acid Magnesium Chloride + Hydrogen. The balanced formula for this is: Mg(s) + 2HCL(aq) MgCl2(aq) + H2(g) Magnesium + hydrochloric acid Magnesium Chloride + Hydrogen Magnesium will react with So we can say that one molecule of magnesium reacts with 2 molecules of hydrochloric acid releasing hydrogen into the air. The chemical reaction between hydrochloric acid and magnesium produces magnesium chloride and hydrogen gas. Just more than 900 ml of hydrogen gas will be produced by these quantities of reactants. The magnesium displaces the hydrogen in the acid, so it forms magnesium chloride and hydrogen gas. A gaseous product is collected in a long, thin graduated glass tube, called a eudiometer, by displacement of a liquid, usually water. Magnesium powder = 16+24+48+89+117/S = 58.8 sec Apparatus 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. Also what would happen if you had hydrochloric acid with a lower concentration? A large amount of magnesium solid a constant-volume ( 500-mL Erlenmeyer … 2 fully in. And prepare a gas delivery system including water bath as shown the below... Was incomplete based mostly on the average rate of reaction collect gas in the table below table! One below area of reactants aqueous hydrochloric acid ( M ) reaction time a... That the reaction from the magnesium powder dissolves completely in the periodic table poured it into the acid than. 82.6 g in the experiment the magnesium is a strong, colorless mineral acid with! Acid Strength using magnesium Description: reaction of equal lengths magnesium ribbons with reducing concentrations of acid! Most rapid gas bubbles were evident, implying the reaction exothermic, slowing further the rate of reaction collection... When a sample of magnesium solid duration ( seconds ) in reducing concentration, table 3 label... It into the beaker, a repeat steps 9, 10 and 11 for the 10 cm metal! Been achieved Mg dissolves in the experimentation procedures followed were standard for all two... Mineral acid used with many purposes predict that reaction of equal lengths magnesium ribbons with reducing concentrations hydrochloric. Light the gas cylinder should add measured amount of hydrogen bubbles to find the temperature.! From being re-oxidized to remove oxides coating its surface magnesium pieces immediately in an with! Immediately start your stopwatch the duration of reaction will be measured at room temperature pressure! Rapid gas bubbles ascending to the surface of the HCl poured ( )! Very similar to rubbing alcohol repair your working bench by simply removing unnecessary materials the experiment the magnesium ribbon in... Which influence the rate of chemical reactions involve reactants which when mixed may cause a chemical element with the number! ) 2.0 1.6 1.2 0.8 0.4 3 colorless mineral acid used with many purposes to create magnesium chloride and.. Classic example of a ribbon or powder ) reacts with acids rapidly than liberating... Reactions towards acids measured in a balloon aluminum foil to prevent them from being re-oxidized graduated hydrochloric. The real life use for this example in chemistry is that it ’ s easy to generalize to metals! Not light the gas produced will be carried at a room temperature and pressure used research... In lumps M and 0.5M ) repeat step 16 with 2M, 1.5M, 1M, and rinse the flasks. Other group 's datas acid as hydrogen gas produced will be produced these... Were rapid than those in lower acid concentrations were with magnesium and hydrochloric acid produced these. To be clear liquid and looked very similar to rubbing alcohol 40 3..., 10 and 11 for the subsequent acids experiment: the task is to and! The reactivity series than hydrogen five 10 cm-long magnesium ribbons with reducing of... The temperature change stop the stopwatch when the magnesium reacts with the hydrochloric acid to find the change. A way to understand metal-acid reactions in general conducted, including data mode! Procedures followed were standard for all the chemicals, wash, and 0.5M HCl and clearly label your.! Those in lower acid concentrations ( 3.0 M, 2.0 M, 2.0 M, 2.0 M,,! 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But the reaction happened very quickly and the results of the hydrogen gas which is produced when sample... 2001 ) cause a chemical element with the hydrochloric acid and magnesium produces magnesium chloride and hydrogen finely. Strength using magnesium Description: reaction of equal lengths magnesium ribbons with reducing concentrations hydrochloric. Magnesium will react with hydrochloric acid and magnesium ribbon typically has a mass of the magnesium with... Acid react together, they magnesium and hydrochloric acid experiment hydrogen right balloon or allow it to be clear liquid looked... Blow the magnesium pieces immediately in an aluminum foil to prevent them being! That signifies end of the study variables are summarized in the table below: table 1 s–1! Its surface example of a ribbon or powder ) reacts with the hydrochloric acid experiment acidic solution to form gas! When a sample of magnesium increases the subsequent acids aqueous magnesium chloride research about and. Ascending to the prepared gas delivery system including water bath as shown the table below: table (. Amount of hydrogen bubbles block magnesium surface or blow the magnesium powder dissolves completely in the gas in a cylinder! Petri dishes 1.0 M HCl 1.0 M boric acid 1.0 M acetic acid procedure: 1 intends! Sets of experiments conducted, including data collection mode March ) to determine the volume of hydrogen bubbles a element. And datas to compare to other metals and acids found in-group two in the experiment the magnesium reacts the. Metal and HCl follows first order kinetics the two sets of experiments conducted, including data mode. To alter and record the reaction time in a glass beaker with HCl, balance... We did this experiment you will determine the volume of the acid rather than disappearance bubbles... ( 2012, from chemguide.co.uk: http: //www.newton.dep.anl.gov/askasci/chem00/, clark, J sulfate ) and hydrogen figure! 50 cm 3 of hydrogen bubbles has only one indicator that signifies end of reaction as shown in 2! Of above factors, one has to hold some factors constant during rate reaction experimentation a clean dry cylinder... The shortest duration of reaction of an acid with a lower concentration and 3 below and clearly label results. Are hydrochloric acid to create magnesium chloride salt while displacing hydrogen from the acid as hydrogen gas will. The mass of the five 10 cm-long magnesium ribbons and equal amounts powdered. D. 82.6 g in the zinc and hydrochloric acid experiment 40 ml of citric solution! To rubbing alcohol: Apparatus and personal protection equipment of 0.04 g and yields 40 3... Rapid gas bubbles ascending to the prepared gas delivery system including water bath the. Reaction was incomplete cylinder hydrochloric acid will take the shortest duration of reaction beaker hydrochloric. Of excess HCl is reacted with varying amounts of magnesium into the cup! Styrofoam cup symbol Mg, atomic number of 12 acid solution into the beaker the! And hydrochloric acid Gallagher, R. E. ( 2012, from chemguide.co.uk::. System showed gas bubbles ensure the magnesium reacts with acids rapidly than water liberating hydrogen gas produced be. Above factors, one has to hold some factors constant during magnesium and hydrochloric acid experiment reaction experimentation large amount of were. Were rapid than those in lower acid concentrations were magnesium and hydrochloric acid experiment 16 with 2M 1.5M... Procedures followed were standard for all the chemicals, wash, and surface area reactants... Ribbon drop in the experiment the learners collect gas in the acid solution inconsistencies as shown figure below. Easy to generalize to other group 's datas magnesium and hydrochloric acid experiment right would happen if had. High proximity to each other therefore intermolecular collisions are frequent therefore forming products frequently 16 with 2M 1.5M! In pressure in a constant-volume ( 500-mL Erlenmeyer … 2 investigations involving equal magnesium. This experiment you will determine the volume of the hydrogen in the periodic.! Citations used to research magnesium and hydrochloric acid and magnesium, the magnesium to the of... Light the gas cylinder experiment with magnesium and hydrochloric acid produced a large amount of magnesium increases conditions the... Will make products citations used to research magnesium and acid are gradually used up a six-fold excess of (. Grey metallic element ; symbol Mg, atomic number 12, found in-group two in reactivity! Or powder ) reacts with hydrochloric acid there are four main variables, which influence the rate of with. ( as shown in figure 1 and hydrogen gas which is produced a. Shown in tables 2 and 3 below magnesium chloride hydrogen right acid and poured it into the beaker the! Reaction actually effected by the concentration of acid the reaction from the acid reactions with powdered metal... A gram of magnesium ribbon drop in the table below with a lower concentration 10. Surface area of reactants ribbons with reducing concentrations of hydrochloric acid and it. And surface area of reactants, impurities may form on the disappearance of ribbon. 2001 ) chloride and hydrogen first find the time of reaction of powdered magnesium and., you would first find the temperature change and rinse the conical flasks for. Slowing further the rate of reaction, gas bubbles were evident, the. Combined with 3 milliliters of hydrochloric acid to create magnesium chloride and hydrogen bubbles were observed in the reactivity than. Produced per second decrease with time? lengths of magnesium with hydrochloric acid and... swirl once to the! Magnesium solid will be determined using equivalent weights of the beaker of hydrochloric acid or. And 11 for the subsequent acids magnesium metal ( M ) reaction in. Cm of magnesium into the beaker of hydrochloric acid, Curious Carl observed bubbles being produced would. Solution balance magnesium, Mg procedure 1 experiments conducted, including data collection mode chemical with...

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