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Rate of reaction of sodium thiosulfate and hydrochloric acid
The effect of concentration changes on reaction rate
Rate of reaction of sodium thiosulfate and hydrochloric acid
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Investigating the Rate of Reaction Between Sodium Thiosulphate and Hydrochloric Acid
Aim
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I will be investigating the rate of reaction between Sodium
Thiosulphate and Hydrochloric acid. I intend to find the difference
in the rate of reaction when I change the concentration of the Sodium
Thiosulphate, as I am only changing the concentration of the Sodium
Thiosulphate I will keep the concentration of Hydrochloric acid the
same at all times.
[IMAGE]Hydrochloric + Sodium Water +
Sodium + Sulphur + Sulphur
Acid Thiosulphate
Chloride Dioxide
[IMAGE]2HCl + Na S O H O + 2NaCl + SO + S
Prediction
I predict that from this experiment I will find that the weaker the
concentration of Sodium Thiosulphate is to the concentration of
Hydrochloric Acid, the longer the reaction will take to occur.
Theory
In my prediction I have stated that, the weaker the concentration of
Sodium Thiosulphate is to the concentration of Hydrochloric Acid, the
longer the reaction will take to occur. In my opinion this will
happen because of the particle theory. As we already know, everything
is made up of millions of tiny particles. Particles are units of
matter smaller than an atom. Particles are the basic units of all
matter and energy. Therefore I can conclude that there are definitely
particles in the reactants that I will be using in my experiment.
Before the two chemical reactants can react their particles must come
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.
The aim is to find out if changing the concentration of the hydrochloric acid solution has an effect on the time taken for the reaction. The reaction that will take place is: Hydrochloric acid + Calcium Carbonate + Calcium Chloride + Water + Carbon dioxide 2HCl (aq) + CaCo3 (s) CaCL2 (aq) + H2O + CO2 (g). Collision theory - Collisions between reactant particles are needed. for the reaction to take place in order to form a product.
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 there is therefore more chance of successful in the collisions.
= = = == I predict that as the concentration of the hydrochloric acid decreases the rate of reaction will decrease and therefore the time taken for 75ml of gas to be released will increase.
from 10cm to 50cm to make it easier to see the difference in a graph.
Every society has its own views on how the consumption of alcohol should be handled and regulated. Their differences create a trickle effect of how it is used, and is distinctive to that culture or society. Many cultures drinking habits go hand in hand with religion, and social customs. Drinking alcohol is in many cases a part of extensive learned tradition, where people pride themselves with their ability to hold their liquor. In countries where alcohol is part of the “norm”, the outcomes of drinking habits or the effects of alcohol are much different, “A population that drinks daily may have a high rate of cirrhosis and other medical problems but few accidents, fights, homicides, or other violent alcohol-associated conflicts; a population with predominantly binge drinking shows the opposite complex of drinking problems”#. It has been observed that cultures with rich traditions and acceptance of alcohol use tend to deal less with the typical alcohol related problems, compared to the cultures who treat alcohol as an escape or something that will make them better in the eyes of others. In these societies, like the U.S. alcohol hasn’t always been present and grown to be...
Most people agree and strongly recommend that in order to drink, people should have a higher age of initiation and maturity because of the damages posed by drinking, which they lost themselves in alcohol. Like example, citizen need to be legally 21 to purchase a handgun , gumble in a casino or adopt a child. In which they have grown and know what they are doing by using their brains. Instead of doing it first then thinking afterwards, which always lead to bad result for themselves and for others. Furthermore, It also prevent kids who's being bullied or have a negative life, whichever they lack of experience to handle, away from alcohol. Considering they will soon find and drink alcohol becomes a solution for their problems by the lack of understanding about alcohol. Which they think it is just a eq...
To answer this question, we shall look at various legal age drinking laws passed in various countries. Some countries allow one to start taking alcohol as early as sixteen or eighteen years of age. However, in some countries, use of alcohol is illegal –you cannot drink alcohol at all, regardless of your age. Currently, there is a huge debate within the country about this issue. Fell (4) mentioned “Nineteen and twenty year olds are drinking anyway; if we legalize it, they will be drinking in a controlled setting”.
Nowadays, as the fast development of the modern society, the demand of relaxing and enjoying life tend to increase dramatically. Obviously, drinking is considered as one of the most popular hobbies that most of people in different ages like to do beside eating and entertaining. Unfortunately, while having experience with delicious foods and wonderful entertainment is mostly appropriate, drinking is no longer viewed as an acceptable activity when there are groups of people who are inappropriately taking drinks without thinking about risking their life and breaking rules. There are three reasons why the suitable drinking age should stay at 21 or above instead of reducing it to 18.
If they collide with sufficient energy, then they will react. The minimum amount of kinetic energy required for particles at the time of collision is called the activation energy and this theory is known as the?collision theory?. Reactions occur in all circumstances. Chemicals are always combining and breaking up. Reactants and products combine and break apart in all reactions.
Only particles with enough energy to overcome the barrier will react after colliding. The minimum energy that a particle must have to overcome the barrier is called the activation energy, or Ea. The size of this activation energy is different for different reactions. I think that the concentration of a solution affects the rate of reaction because the rate of reaction depends on how frequently the molecules of the reacting substances collide. A more concentrated substance has more molecules at a given volume than a more dilute substance.
This meeting between the two particles can only take place on the surface area of the material. If the surface area of the material is increased, the particles gather more space to collide with each other with force. With a large surface area, the particles will have more area to work on so the collision probability will be high. A catalyst is a separate substance to the ones you use in your experiment and is used to speed up the reaction between the reactants.
In terms of society, an age restriction should be passed down in Canada when it comes to the act of alcohol consumption. For one, it may prevent the risk of death or suicide accidents from prevailing in terms of reducing impaired driving. Second, alcohol, in general can be linked to chronic health related issues ultimately causing damage towards an individual’s body, both, physically and emotionally through a certain period of time. Thirdly, for certain individuals who come from a variety of different cultures, for some, it is not socially accepted for them to drink in the eyes of society. These are the three main reasons why restrictions should be established in place because when it comes to the law
Investigating the Effects of Temperature on the Rate of Reaction between Magnesium and Hydrochloric Acid
Investigating How the Concentration of Hydrochloric Acid Affects the Rate of Reaction with Calcium Carbonate