Investigating the Rate of Reaction Between Magnesium Ribbon and Hydrochloric Acid
Aim:
To find out the rate in which magnesium ribbon dissolves in different
molars of hydrochloric acid, and which factors affect the rate of
reaction.
Prediction:
The 'Collision Theory' says that particles can only react if they
collide with enough energy for the reaction to take place. As well as
the collision theory there are also other factors that will effect how
quickly and effectively the reactions take place.
The four factors that effect the rate of a chemical reaction are:
TEMPERATURE,
CONCENTRATION OF ACID,
SURFACE AREA OF THE REACTANT
and USE OF A CATALYST.
Temperature
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The higher the temperature of the solution, the faster the rate of
reaction, and vice versa. This is because as the solution heats up the
particles gain energy and begin to move faster and with more energy.
This causes more successful collisions per minute and consequently a
faster rate of reaction.
We carried out an experiment in lesson, which involved placing marble
pieces in hydrochloric acid. We altered the temperature of the acid
and recorded the speed in which the marble dissolved in the different
temperatures.
After repeating the experiment several times, we found that the higher
the temperature of the acid the faster the marble reacted and
consequently dissolved. This is, as I said above, because the acid
particles have more energy to move around and they collide with more
energy, increasing the rate of reaction.
HOT = FAST COLD = SLOW
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Concentration
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The concentration of the acid will effect the rate of reaction. This
is because there are more particles of acid to collide with the metal
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.
Investigating the Rate of Reaction Between Marble Chips and Acid Introduction This is a test to demonstrate the reaction rate between marble chips (CaCO) and hydrochloric acid (HCl). Hopefully we will be able to prove that the concentration of the acid is directly proportional to the reaction rate. Aim To discover if the concentration of acid is directly proportional to the rate of reaction, by monitoring the amount of gas given off as the reaction takes place. Prediction We believe that the concentration of the acid will be directly proportional to the rate of reaction. We believe this due to the following theory: [IMAGE]The collision theory: This theory states that for a reaction to occur the reactant particles need to react with sufficient energy.
The Effect of Temperature on The Rate Of Reaction Between Magnesium And Hydrochloric Acid Planning I'm planning on investigating how temperature effects the reaction between magnesium and hydrochloric acid, the experiment will show whether the reaction will speed up or slow down with the change in temperature. Temperatures will range from room temp up until 70 degrees. The investigation will be a fair test because all quantities will remain the same for each test, each test will use the same amounts of hydrochloric acid and same size of magnesium, also the concentration of the acid will also not be changed. APPERATUS; · Conical flask · Bunsen Burner · Thermometer · Tri-pod · Protective matt · Stopwatch · Gauze · Measuring jug · Goggles
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An investigation into how changing one variable influences the rate of reaction between marble chips and dilute Hydrochloric acid
The Effect of Temperature of Hydrochloric Acid on the Rate of Reaction Between Hydrochloric Acid and Magnesium
Rate of Reaction Between Marble Chips and Hydrochloric Acid. The aim of this experiment is to find out how different variables affect the rate at which the reaction between Marble chips (CaCO ) and Hydrochloric acid (HCl) is used. There are many variables that affect the rate of this reaction such as the following. 1.
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One vital process in the human body observed in chemistry is the idea of chemical kinetics. Chemical kinetics is the study of the rate of reactions, or how fast reactions occur.1 Three factors that affect chemical kinetics are concentration, temperature, and catalysis. As the concentration of a substance increases, the rate of the reaction also increases.1 This relationship is valid because when more of a substance is added in a reaction, it increases the likelihood that the
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The rate of reaction is how quickly or slowly reactants in chemical reactants turn into products. A low reaction rate is when the reaction takes a long time to take place; hence, a reaction that occurs quickly has a high reaction rate. A rate refers to how slow or quick the product is produced. It is possible to control the rate of chemical reactions and speed up or slow down the rate of chemical reactions by altering three main factors which are temperature, concentration and the surface area. When the temperature of the reactants increases, the molecules vibrate at a more intense speed therefore colliding with each other more frequently and with increased energy resulting in a greater rate of reaction. Accordingly, as the temperature decreases the molecules will move slower, colliding less frequently and with decreased energy resulting in the rate of reaction decreasing. Concentration is how much solute is dissolved into a solution and is also a factor that affects the rate of reaction. When the concentration is greater this means there is an increased amount of reactant atoms and molecules resulting in a higher chance that collisions between molecules will occur. A higher collision rate means a higher reaction rate. Consequently at lower concentrations there are reduced chances of the molecules colliding resulting in a lower reaction rate. The measurement of how much an area of a solid is exposed is called the surface area. The quicker a reaction will occur the more finely divided the solid is. For example, a powdered solid will usually have a greater rate of reaction in comparison to a solid lump that contains the same mass for it has a lower surface area than the powdered solid.