Investigating How Different Concentrations Affect the Rate of Reaction
In this investigation I am investigating the effect of one factor on
the rate at which calcium carbonate reacts with hydrochloric acid. I
have decided to change the concentration of the acid to investigate
how different concentrations affect the rate of reaction, and to
discover what amount, at which concentration releases a higher
quantity of gas. There are other factors, which could have been used
as the variables.
My method is as follows I will measure out 2 grams of marble chips
using the scales, and add them into a conical flask and 20ml of
hydrochloric acid into a measuring cylinder. I then added the acid
into the conical flask with the marble chips and started the clock
straight away. After time periods of every 30 seconds I measured the
amount of gas in the syringe, this will continue until one of two
things happened. Either the volume of the gas syringe gets past 100cm
and it is necessary for the back of the gas syringe to be taken out,
otherwise it could drop out and smash, or the volume of gas remains
constant for 1 minute, and then that particular experiment will end.
1Molar Room temperature-27 c.
1M Room temperature-27'c.
Time
Time
Experiment 1
------------
(Large chips)
Experiment 2
(Small chips)
Experiment 1
(Large chips)
Experiment 2
(Small chips)
Experiment 3
(Small chips)
Experiment 3
(Small chips)
0
0
0
0
20
21
6
21
40
49
17
43
60
73
28
59.5
80
93
38
71.5
100
47
79.5
120
54
85.5
140
60
89.5
160
65
CL-, as the ions of H+ and OH- react to form H2O. These spectator ions
Determine the reaction order for Na2S2O3 using calculations described in the Background. Show your work. Note that your answer will probably not be an even whole number as it is in the examples.
It is important however to note that the NH4 and K ions are still in
Then after threading a catheter through the needle, the anesthesiologist will withdraw the needle and leave the catheter i...
Investigation to find out if changes in concentration of acid affect the rate of a chemical reaction
In this experiment there five different phases and in each a different factor of the Collision Theory was tested. The first phase was called, Nature of the Reactants and it had three parts to it. In the first part of it which was steps 1-4, 5 pieces of mossy zinc were put into 3ml of 2M H_2 〖SO〗_4 and during this time bubbles were produced. After a few minutes the zinc was removed from the acid and it was now clean zinc.
have decided what size chips I I'm going to use I will keep the same
Investigation looking At the Speed of Reactions Introduction The aim of this experiment is to find out how a variable can affect the results from a scenario set up in scientific environment. The experiment is to see how a certain variable will affect the amount of Gas produced from a Calcium Carbonate and Hydrochloric Acid Reaction. The Science Calcium Carbonate is a generally white or colourless mineral that is translucent.
Investigating Factors that Affect the Rate of Reaction There are certain factors which affect the rates of reaction in an experiment. These factors are: · Pressure · Temperature · Concentration * Surface area / particle size and * The addition of a catalyst The factors that I will be concentrating on are temperature, concentration and surface area / particle size. Pressure Pressure influences the rate of reaction only when the reactants are in their gas phase. Pressure does not affect them much when they are either solids or liquids.
« Surface Area - If the reactant has a large surface area, there is a
form. This will give me a good set of results, if I was to use
that it is a manageable number to plot on a graph if necessary. It is
The Effect of Acid Concentration on the Rate of Reaction Introduction: We are going to investigate the effect of Acid Concentration on the Rate of Chemical Reaction. We are going to use the combination of Hydrochloric Acid and Calcium Carbonate as the reactants: [IMAGE][IMAGE] [IMAGE]Calcium Carbonate + Hydrochloric Acid Calcium Chloride + Water + Carbon Dioxide Prediction I predict that the greater the concentration of acid the greater the rate of chemical reaction i.e. the rate of reaction will be directly proportional to the concentration of acid. This means that if I were to double the concentration of acid the rate of reaction would also double, halving the time taken. In order to generate a more accurate picture I have constructed a series of graphs highlighting my above statements. I have used a relative scale, following my prediction, in order to calculate the rate and therefore time taken.
The effect of concentration on the rate of reaction between sodium thiosulphate and dilute hydrochloric acid
that the rate of reaction must be fast enough to make as much of the