Rate of Reaction Between Calcium Carbonate and Hydrochloric Acid
Planning
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The aim is too investigate what factors affect the rate of reaction
between calcium carbonate and hydrochloric acid.
The variable I am intending to use in the experiment is Hydrochloric
Acid. I want to find out how different strengths of acid affect the
speed of the rate of reaction.
The variables that could affect the rate of reaction are:
· Temperature
· Concentration of Acid
· Surface Area
· Increase Pressure (this is not applicable in this experiment)
· Catalyst (this is not applicable in this experiment)
· Volume
· Mass of Calcium Carbonate
· Stirring the Solution.
I will set up the experiment as shown in the diagram below. Looking at
the above variables, I have chosen to change the strength of the
Hydrochloric Acid, as there are more than five different strengths of
acid. This will let me take at least five sets of results, and if the
experiment is repeated I can take an average and create a more
accurate graph.
Prediction
I think that the higher the concentration of the acid, the faster the
reaction will occur. This relates to the collision theory and the
section of acid and concentration of it. I think the 1.75molar
hydrochloric acid is likely to be a lot faster than that of a 0.75
molar acid - the stronger the acid, the higher the likelihood of
collision, which goes onto the reaction happening faster. If there is
a higher concentration of acid, there is a higher chance of
collisions, due to more particles colliding.
Trial Runs
I took some trial runs to help me with my experiment. The first trial
run was to find out what sort of volume of acid to use. I tried 100
ml, and found after the water in the boiling tube had been displaced
the reaction still carried on a long time afterwards. I then tried 25
ml of acid and found the reaction did not last enough for the water to
The Effect of Concentration of Hydrochloric Acid on the Rate of Reaction with Magnesium Aim: To investigate the effect of concentration of hydrochloric acid on the rate of reaction with magnesium Prediction: As the concentration of the hydrochloric acid increases, so will the rate of reaction Hypothesis: In a reaction, particles of two different reactants react together to form a product. The reaction only takes place on account of two things, if the particles collide, and if the collision has enough 'activation energy'. The two reactant particles, in this case magnesium particles and hydrochloric acid particles, must collide with each other on the correct 'collision course'. If this does not occur then no chemical reaction will take place. The reaction must also have enough energy, this can be affected by temperature, the more heat the particles have the faster they move and so the more energy therefore more chance of successful collisions.
It will be when there is too much HCl for the marble chips to dissolve
Experiment is to investigate the rate of reaction between hydrochloric acid and calcium carbonate Hydrochloric acid + Calcium Carbonate Þ Calcium Chloride + Water + Carbon Dioxide 2HCl (aq) CaCo3 (s) CaCl2(s) H2O (aq) CO2 (g) There are a number of variables in this experiment and these are listed below as input variables and outcome variables.
will result in an increase in the speed of the rate of reaction it has
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...ations served as background information for the calculations and for the general procedure of the lab. The solid acid, when added to water ionized to form charged particles causing the solution to have a certain pH that could be figured out from a titration curve graph. The acid used in this lab, KHP, ionized in water and formed Hydronium ions in the water. These ionized particles were what gave the acid a certain pH and those particles were what was being neutralized in the reaction. Multiple titrations were performed to neutralize the acid, in each titration, the lab groups attempted to reach the exact endpoint of the reaction without going over it. The endpoint was indicated by a slight color change in the solution to a pale pink color. When the endpoint was achieved, the calculations for the moles of acid to the moles of base were equal at that point.
The Effect of Temperature of Hydrochloric Acid on the Rate of Reaction Between Hydrochloric Acid and Magnesium
from 10cm to 50cm to make it easier to see the difference in a graph.
Rate of Reaction Between Calcium Carbonate and Hydrochloric Acid Plan: In my experiment I will measure the rate of reaction between calcium carbonate and hydrochloric acid. The rate of the reaction is the speed that the reaction takes place so by measuring the rate I will measure the amount of time the reaction takes. Hydrochloric acid is a strong acid that is found in digestive juices in the stomach, it is also used for cleaning metals before they are coated. Calcium carbonate has a few forms including chalk and limestone the main use of these two materials is in the making of concrete, which is used for many things such as buildings. When you put calcium carbonate and hydrochloric acid together they react to form calcium chloride, carbon dioxide and water.
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The Effect of Temperature on the Rate of Reaction Between Hydrochloric Acid and Calcium Carbonate
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