More handpicked essays just for you.
Importance of safety precautions in lab
The importance of laboratory safety
Importance of safety precautions in lab
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Hydrochloric Acid's Effect on The Rate Of Reaction Between Hydrochloric Acid And Magnesium
The variables that could be used are:
1. Concentration
2. Particle size/surface area
3. Pressure (for reactions involving gas)
4. Temperature
5. Light
6. Presence of a catalyst.
I decided to use the concentration of acid as my variable. I used 5
different strengths of hydrochloric acid. These strengths would
determine the rates of reactions. I decided to measure the acid in
millilitres.
When the magnesium ribbon reacts with the hydrochloric acid, magnesium
chloride is formed. I wrote down the equation to show this:
Magnesium + Hydrochloric acid = Magnesium Chloride + Hydrogen
Mg + 2HCl = MgCl + H
I think that the higher the concentration of the acid, the faster the
reaction between magnesium ribbon and the hydrochloric acid. This
would be because there were more acid molecules to react with the
magnesium ribbon. I decided that I would do 5 experiments and the
different concentrations of hydrochloric acids were:
50ml of pure acid
40ml of acid - 10ml of water
30ml of acid - 20ml of water
20ml of acid - 30ml of water
10ml of acid - 40ml of water
To measure the rate of reaction I will see how long it takes for the
magnesium and hydrochloric acid to produce one test tube full of
hydrogen as shown in the diagram.
To make the experiment a fair test I used the same amount of the
solution for all experiments, only changing the concentrations. I used
the same size of magnesium ribbon, I also started the stop clock when
the magnesium touched the acid and stopped it when the test tube was
full of hydrogen for each experiment. I always washed out the test
tubes when an experiment had finished so the different concentration
wouldn't get mixed together causing strange results.
I decided I would do 5 experiments, three times each.
To ensure a safe experiment and working environment I need to wear
The rate law determines how the speed of a reaction occurs, thus allowing the study of the overall mechanism formation in reactions. In the general form of the rate law, it is A + B C or r=k[A]x[B]y. The rate of reaction can be affected by the concentrations such as A and B in the previous equation, order of reactions, and the rate constant with each species in an overall chemical reaction. As a result, the rate law must be determined experimentally. In general, in a multi-step reaction, there will be one reaction that is slower than the others.
Investigating How the Concentration of Hydrochloric Acid Affects the Rate of Reaction with Calcium Carbonate
the acid was at 14 C the magnesium took 141 seconds to react and 27 C
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.
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
Input variables In this experiment there are two main factors that can affect the rate of the reaction. These key factors can change the rate of the reaction by either increasing it or decreasing it. These were considered and controlled so that they did not disrupt the success of the experiment. Temperature-
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.
The Effect of Temperature of Hydrochloric Acid on the Rate of Reaction Between Hydrochloric Acid and Magnesium
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.
from 10cm to 50cm to make it easier to see the difference in a graph.
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.
Investigating the Effects of Temperature on the Rate of Reaction between Magnesium and Hydrochloric Acid
An investigation into how changing one variable influences the rate of reaction between marble chips and dilute Hydrochloric acid
Before conducting my experiment I will research into, amongst other things, the factors that affect the rate of a reaction. This is so that I may enough information to understand the effect of temperature on the rate of a reaction and also gain appropriate understanding to make a suitable prediction as to what the outcome of my experiment will be.
The time taken for this to happen is the measure of the rate of reaction. We must do this several times, and change the concentration of sodium thiosulphate. The rate of reaction is a measure of the change, which happens during a reaction in a single unit of time. The things that affect the rate of reaction are as follows. Surface area of the reactants Concentration of the reactants