Investigate the rate of reaction between HCl and Na2S 2O3
For this piece of coursework we are investigating the rates of
reaction and he effect different changes have on them. The rate of
reaction is the rate of loss of a reactant or the rate of formation of
a product during a chemical reaction. We are studying the affect of
changing concentration of Na2S2O3 Solution and dilute HCl.
I believe these variables will affect the rate of reaction:
· Surface area
· Pressure
· Temperature
· Catalyst
· Concentration
Concentration
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If the concentration of a solution is increased there are more
reactant particles per unit volume. This increased the probability of
reactant particles colliding with each other.
Pressure
If the pressure is increased the particles in the gas are pushed
closer. This increases the concentration and that will change the rate
of reaction.
Surface Area
If a solid is powdered then there is a greater surface area available
for a reaction, compared to the same mass of unpowdered solid. Only
particles on the surface of the solid will be able to go though with
collisions with the particles in a solution or gas.
Temperature Change
When the temperature is raised these things may happen:
· The peak will be at a higher energy
· The peak is lower
· The peak is broader
· There is a large increase in the number of particles which higher
energies
Catalysts
A catalyst is a substance that speeds up a r...
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.
When energy in the form of heat is given out of a reaction it is an
The military draft is the random selection of men for compulsory military service. The draft in the United States hasn’t been in effect since 1973 but, before that, it caused a considerable amount of controversy during the Vietnam War. During those times the draft was one of the major issues that deeply divided the country, there were thousands of people trying to find ways out of the draft, and thousands of people accusing them of cowardice. It continues to be a topic of debate even today. The question we are faced with now is should the United States reinstate the draft? Both sides have some fair points, but I don’t believe that it would be necessary or wise.
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Effect of Temperature on the Rate of Reaction between Sodium Thiosulphate and Hydrochloric Acid Investigation Chemical reactions are used in our everyday life, they literally keep us alive. They are used in food, respiration and everywhere else in the environment. A chemical reaction mainly occurs when reactants react together to produce a new product. The speed at which this reaction takes place is called the rate of reaction. The product produced has a number of particles in the solution that has formed from the reactants.
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Bach was born in Eisenach, Thuringia, Germany, on March 21, 1685, he came from a family of musicians, going back several generations. Johann Ambrosius, his father, worked as the town musician in Eisenach, and he taught young Johann to play the violin.
The Rate of Reaction Between Calcium Carbonate and Hydrochloric Acid Planning. CaCO3 (s) + 2HCl (aq) ---- CaCl2 (aq) + H2O (l) + CO2 The rate of reaction depends on how hard and how often the reacting particles collide with each other. A rate of reaction is how fast a reaction takes place.
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.
Experimental designs are viewed as the most accurate, and most demanding of research designs, requiring strict attention to rules and procedures. Researchers use these research designs to manipulate and control testing procedures as a way to understand a cause and effect relationship. Commonly, independent variables are manipulated to judge or decide their effect on a dependent variable (Trochim & Donnelly, 2008).
There are 3 types of research design which can be used in conducting studies which consists exploratory research, descriptive research and causal research. Exploratory research is used when few or no previous studies exists (Neville, 2007). While, causal research is a type of investigation in which the researcher has no direct...
Reactions occur when the particles of reactants collide together continuously. 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?.
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