Investigate the rate of reaction between HCl and Na2S 2O3 Essay

This website was used on October 3, 2014 to help develop a better understanding of collision theory in order to explain the various factors affecting the rate of reaction.

reaction has taken place, for example a gad is given off or a solid is

Statement of Inquiry: What is the effect of changing a factor on the rate of chemical reaction?

How concentration affects the rate of reaction between Hydrochloric Acid and Sodium Thiosulphate Chemistry Coursework How Concentration Affects a Reaction Aim: The aim of this experiment is to find out how concentration affects the rate of reaction between Hydrochloric Acid and Sodium Thiosulphate. Introduction: This experiment will be carried out by drawing a cross on a piece of paper and mixing hydrochloric acid and sodium thiosulphate together to see if the cross disappears. The concentration of hydrochloric acid would change every reaction to show that concentration effects a reaction.

Introduction: Chemistry happens everywhere, not just in a lab. Matter interacts to form new substances through a process called a chemical reaction. Your body lives and grows because of chemical reactions, whether by taking medicine or even a breath. A chemical reaction is defined as the process that involves rearrangement of the ionic structure of a substance. A reaction rate is how fast or slow a reaction takes place. Chemicals that proceed quickly have a fast reaction rate, whereas slowly proceeding chemicals have a slow reaction rate. There are many ways to increase the reaction rate of chemicals, for example temperature. If the temperature of the substance is increased, the particles would have higher kinetic energy resulting in more & more collisions. A greater proportion of collisions results in a reaction. Magnesium and Hydrochloric Acid are the two chemicals investigated throughout. Magnesium is an important supplement in the human body as well as its uses in many lightweight products such as car seats, luggage as well as fireworks and sparklers. Hydrochloric Acid can be found in the human body as a digestive acid.

Reactants collide with each other so new bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make new products

In this experiment it was observed that not all chemical reactions occur at the same rate. Chemical reactions occur when one or more substances are changed into other substances. The properties of a chemical reaction require three things. First, they need a source of energy for molecules to encounter each other. Second, they require to proceed at a steady rate. Third, they must proceed in a particular direction until they reach equilibrium. There are two types of chemical reactions that can occur: endergonic and exergonic reactions. In these reactions there are both reactants and products. In exergonic reactions the reactants (starting materials of a reaction) are higher than the products (results of a reaction). This is opposite for endergonic

It is the reactant that will deplete or will be used up first during a chemical reaction. Limiting reactant also determine how long the reaction will last for.

Abstract: This experiment helps determine the rate of reaction of crystal violet while it reacts with sodium hydroxide with respect to crystal violet. The amount of sodium hydroxide is varied in this experiment while crystal violet is kept at a constant. The transmittance of crystal violet is observed and recorded using a colorimeter and the data obtained is used to plot graphs which are manipulated using LoggerPro software to produce the desired outcome; rate of reaction of crystal violet. Upon completion of the experiment it was seen that the rate of reaction of crystal violet turned out to be 1

When the products and reactants separate from each other, the reaction rate would become

A chemical reaction is a process in which elements or compounds react with one another to create new or different substances. There are two parts to a reaction. Those two parts are the products and the reactants. The reactants are the chemicals or chemical compounds that are going through the reaction itself. The products are chemical elements or chemical compounds that are produced as a result of the reactant or reactants reacting. There are four key indications that there’s a chemical reaction is taking place. Those four signs include a change in color and/or odor, formation of a precipitate or a gas, the release or absorption of energy (light, heat, electricity), and if the reaction is irreversible. Along with this information, there are ways to predict the products of a reaction.

This transformation relies on the amount of activation energy for the particle to form a new product, and the orientation at which the particles collide. There are several factors that can affect reaction rates within aqueous solutions including temperature, concentration, particle size and catalysts. Temperature affects the rate of reaction of a solution by adding heat which speeds up the particles within the solution or by slowing the particles down through the cooling of the reaction. Concentration also has a large impact on the rate at which a reaction occurs because of the change in the number of particles in the solution. By increasing the concentration of the reactants the collision frequency also increases which escalates the rate at which products are being formed. Decreasing the number of particles in the solution also will decrease the speed with which products are created. Once a reaction between substances has fully occurred, a dynamic equilibrium is established. Although in a dynamic equilibrium the concentration of the reactants appears to be unchanged, a reaction still occurs with the forward reaction rate being equal to that

To keep this a fair test I have made sure that the acid used is the

This is a fair test because the only thing that is changed is the drop

Kinetics of chemical reactions is how fast a reaction occurs and determining how the presence of reactants affects reaction rates. In this experiment the rate of reaction for Fe+3 and I- is determined. Because the rate of chemical reactions relates directly to concentration of reactants, the rate law is used to find the rate constant, and calculated with specified temperatures.