Rates of Reaction Lab Report

2. Obtained a 2-3 cm strip of magnesium metal ribbon and coiled it loosely into a small ball. Added the magnesium metal to the acid in the test tube.

During the immersion of the magnesium metal in the hydrochloric acid solution, white bubbles could be seen escaping the surface of the metal as gas was produced during the reaction. Depending on the temperature of the hydrochloric acid and the overall molar concentration, the rate of reaction differed but the same signs were shown. During the reaction between the magnesium metal and higher concentrations of hydrochloric acid, it was observed that the test tube grew quite warm to the touch. As the immersed magnesium strip sank down, it appeared coated in a layer of white bubbles that fizzed like a carbonated drink. In the lower concentrations of hydrochloric acid, the strip spent some time floating at the surface of the solution in the test tube, later sinking down to the bottom as the

In this analysis of the factors that affect reaction rates, the purpose of the lab was to find the relationship between the change of surface area and reaction rate using Alka Seltzer tablets. In order to determine the connection between the surface area and reaction rate, the time it took for the reaction to finish was recorded for five different surface areas of the tablet. The ceasing of the production of bubbles and fizz and the complete dissolution of the tablet was established as the finished reaction. Water and the Alka Seltzer reacted to form Carbon Dioxide bubbles. As displayed in Graph 1, the relationship between surface area and reaction rate was represented by the positive slope and trend line. Through the data and results, it was concluded that as surface area increases, the rate of reaction also increases representing a direct relationship. The increase in the surface area created more contact and collisions, which increased the rate of the

Materials:Magnesium stripCrucibleCrucible coverClay triangleIron ringRetort standTongsBalanceBunsen burnerProcedure:1.obtained a strip of magnesium between 30-40 cm long2.coiled magnesium strip into a tight roll3.measured the mass of the crucible and cover4.Added the magnesium strip to the crucible and measured the

The experiment was successfully achieved the purpose of this lab: to determine the concentration of Mg2+ using compleximetric tritation. During the experiment, the color in the unknown solution was successfully changed

To keep a fair test I will have to look into all the variables surrounding the experiment and only change the variable that I am testing on. The other variables are the temperature of the acid at the beginning, the volume of acid, the surface area of the magnesium strip, the length of the magnesium strip and if the magnesium strip is cleaned or not.

The term concentration refers to the amount of a substance present in a certain volume of liquid or gas. Increasing the concentration of the reactants will increase the rate of the reaction. If the concentration of a reactant in a solution is increased, there will be a greater number of particles in a given volume of solution. This means the particles are more likely to collide and therefore react when there are more of them. Collisions between particles are necessary for the reactants to rearrange and form the products. In this experiment, the rate of the reaction between magnesium ribbon and hydrochloric acid will be increased by adding a higher concentration of hydrochloric acid each time. The chemical equation between magnesium ribbon and hydrochloric acid can be written as:

An experiment was carried out to predict the limiting reactant in a chemical reaction between Magnesium and Hydrochloric acid, using the mole concept.

Then the crucible tongs were used to remove the crucibles with their respective contents to record final masses of 2.8 grams of the Magnesium Sulfate Hydrate and 4.9 grams of the Zinc Sulfate Hydrate.

2. (5 pts) List and explain the names and affiliations of the various characters/stakeholders in this story – I’m looking for us to use the story to map out the complexities that are generally associated with solving public health puzzles – the stakeholders you list and explain here should apply to many of the cases we consider going forward.

In this lab, students observed reactions, or lack thereof, between metals Mg, Cu, Zn, and Fe; when placed in solutions of Hydrochloric acid (HCl), Cu(NO3)2, Zn(NO3)2, Fe(NO3)3 and Mg(NO3)2. Students were tasked with observing whatever reaction took place and recording the characteristics of said reaction. To set up the lab, students placed a piece of each metal in a pocket on a spot plate. The plates had four pockets in a row, one for each metal, and 3 rows of pockets. Students would then put a solution in each of the rows and observe the effects of that particular solution on each metal.

Based on the data collected, the mass of the magnesium, mass of oxygen, number of g atoms of magnesium, and number of g atoms of oxygen can all be determined with calculations. During the lab the data collected included the mass of an empty crucible, and the mass of the crucible and magnesium. To calculate the mass of the magnesium, you subtract the mass of the crucible from the mass of magnesium and the crucible. To find the mass of the oxygen, you subtract the mass of the crucible and magnesium from the mass of the crucible and oxide . The next calculation that needed to be completed includes the number of moles of the magnesium and the number of moles of oxygen. To calculate the number of moles of magnesium, the mass in the experiment and

After that, it is crucial to convert the mass to volume. The water density at a temperature will aid this process. The compliance of the Volume Occupied by 1.000g of Water Weigh in Air table is deemed necessary throughout the comparison.

Purpose: To measure the heats of reaction for three related exothermic reactions and to verify Hess’s Law of Heat Summation.

Experiment to investigate factors affecting the rate of reaction between magnesium ribbon and hydrochloric acid