The Effects of Concentration on Rates of Reaction Plan: I am going to investigate the affects of concentration on rates of reaction. I will do this by investigating the affect that different concentrations of hydrochloric acid have on a certain amount of marble chips. I want to see how long it takes for a set amount of carbon dioxide to be given off once the acid starts reacting with the marble chips. For a chemical reaction to take place the reacting particles must: A) Collide with sufficient energy or force for a reaction to take place. B) Collide head on so the reaction can take place. For this experiment I will be using the following apparatus: 1 boiling tube 1 bung seal 1 delivery tube 1 clamp and clamp stand 1 balance 1 measuring cylinder 1 stopwatch The boiling tube will have an arm on it so that the delivery tube can carry carbon dioxide to the gas syringe. The clamp and clamp stand will help keep the gas syringe steady while it collects the gas. I will measure a set amount of marble chips on the balance and time the experiment with the stopwatch. Louise Hewitt ------------- Equation: Calcium Carbonate + Hydrochloric Acid à Calcium Chloride + Water + Carbon Dioxide The Equation for this reaction is CaCo3 + 2HCL àCaCl2 + H20 + CO2 Fair Testing: To make this experiment a fair test I need to keep all the values that I do not need to investigate the same. The variables that may affect this experiment are: · Size of marble chip - The size of the marble chip will have an effect on the experiment because the larger the surface area, the more acid that will come in contact with the marble and will be able to react more. I did an experiment to see how the size of the marble chip affected the rate of reaction. These are the results.
way. I will put each piece of potato into the 5 test tubes and add the
3.) Divide your 30g of white substance into the 4 test tubes evenly. You should put 7.5g into each test tube along with the water.
Put the amount of 0.1M cobalt (II) chloride hexahydrate that fills the end of a spatula into a test tube. Then add 2mL of 95% ethanol. Tap the end of the test tube to mix the solution and record the pertinent data in section 1 of the Data Table. Discard the solution in the appropriate container as directed to you by your lab instructor.
of the marble chips the same. I will do all of the experiment on the
How the change of Hydrochloric Acid concentration affects the rate of reaction with Marble Chips
It is important however to note that the NH4 and K ions are still in
time and keep It whole the next) In all my experiments I will keep the
The Effect of Concentration on Reaction Rate Introduction I will be carrying out an investigation into how concentration affects reaction rate. I will be looking at sodium thiosulphate and hydrochloric acid. The reaction is represented by the following equation: [IMAGE]Na2S2O3(aq) + 2HCl(aq) 2NaCl(aq) + H2O(l) + SO2 (g) + S (s) I will add the hydrochloric acid to the Sodium Thiosulphate and time how log it takes for the mixture to turn opaque. I will use a different concentration of Sodium Thiosulphate each time. Prediction
When you place a potato chip in a salt or sugar solution, then if the
I am going to carry out an experiment to measure the change in mass of
Investigating the Rate of Reaction Between Marble Chips and the Varying Concentrations of Hydrochloric Acid
Weigh out two 0.100 g. samples of the product and put each into a test
An investigation into how changing one variable influences the rate of reaction between marble chips and dilute Hydrochloric acid
To improve the method, I would have used a machine to cut the chips to