CHEMISTRY COURSEWORK RATE OF REACTION HYDROCHLORIC ACID AND MAGNESIUM

Get more free essays Which categories were useful to you? The measured duration of acid-metal reaction in seconds and the rate of gas bubbles. Please enable JavaScript to access the full features of the site or access our non-JavaScript page. Ensure that all naked flames are extinguished, and that there are no other sources of ignition available to students. Our new website is coming soon.

A table of results showing HCl-Magnesium powder reaction duration seconds in reducing concentration. Study Variables The Dependent Variables: Clean if necessary by rubbing lengths of the ribbon with fine sandpaper to remove the layer of oxidation. Each group of students will need: Magnesium metal in form of a ribbon or powder reacts with acids rapidly than water liberating hydrogen gas. Eye protection Each group of students will need: Wrap the magnesium pieces immediately in an aluminum foil to prevent them from being re-oxidized.

Most useful resources for students: Magnesium reacts with dilute hydrochloric acid in a conical flask which is connected to an inverted measuring cylinder in a trough of water. Experimental set-up of HCl-Magnesium reaction.

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chemistry coursework rate of reaction hydrochloric acid and magnesium

For stance, magnesium metal reacts with hydrochloric to form magnesium chloride salt while displacing hydrogen from the acid as hydrogen gas. This is as shown in the equation below: The experiment will be carried at a room temperature 25 0C. The experiment itself takes only a few minutes.

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The magnesium ribbon should be clean and free from obvious corrosion or oxidation. A table of results showing HCl-Magnesium powder reaction duration seconds in reducing concentration. In addition, impurities may form on the surface of the magnesium metal therefore, slowing further the rate of reaction.

The equation for the reaction is: Solids, liquids and gases. Increasing concentration of hydrochloric acid: Repeat step 5 and 6 for 2M, 1.

A reaction between Hydrochloric Acid and Magnesium ribbon.

However, Barrans highlights that the reaction rate between magnesium metal and HCl follows first order kinetics. Add up the weights of the five 10 cm-long magnesium ribbons and obtain the average weight in grams Use the average weight as obtained in 15 above and weigh of an equivalent weight of Magnesium powder for this case 0. But allow at least 30 minutes to give students time to set up, take readings and draw graph. Half fill the trough or bowl with water.

Therefore, we sought to test the duration of reaction of equal lengths Magnesium ribbons with reducing concentrations of hydrochloric acid. 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. Repeat step 16 with 2M, 1. Retrieved March 8,from chemguide.

The rate of reaction of magnesium with hydrochloric acid- Learn Chemistry

From the experimentation the aims of the experimentation have been achieved. 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. Reset your stopwatch, a repeat steps 9, 10 and 11 for the subsequent acids.

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chemistry coursework rate of reaction hydrochloric acid and magnesium

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 Determination of end of reaction was sometimes uncertain. All the reaction will be carried out under a constant temperature room temperature of 25 0 C. Therefore, the errors were unidirectional therefore consistent.

While being a lecturer in several high school institutions Lona founded an online educational project Tutorsclass. Add 40 ml of distilled water and label the conical flask with the concentration of the HCL poured.

Experimental set-up of HCl-Magnesium reaction Results and Observations During the reaction, the water bath in the gas delivery system showed gas bubbles ascending to the gas cylinder.

The Controlled Variables constants: This is a low significance error since we based mostly on the disappearance of magnesium into the acid rather than disappearance gas bubbles. Clear your working bench.