Rates Of Reaction Investigation
Plan:
This experiment is planned to investigate the rate of reaction when
mixing Copper sulphate (CuSO4) with Zinc powder (Zn). My plan is to
see what happens before, during and after the reaction takes place.
I will need the following equipment to carry out this investigation:
Ø A 50ml marked measuring tube
Ø A digital precision scale
Ø 600ml of copper sulphate
Ø A digital thermometer
Ø A pot of Zinc powder
Ø A sandpaper (to sand the Copper sulphate off the thermometer)
Ø A pen and a paper (to record results.)
Ø A beaker (to mix the elements)
Ø A stirring stick
For the first preliminary results chart, the variable will be the
amount of Zinc powder but the copper sulphate solution will be 30 ml.
Step-by-step:
In order to get satisfactory results out of this experiment, you'll
have to follow carefully the step-by-step instructions:
i. Put a light plastic recipient on a digital precision scale.
ii. Reset the scale to zero.
iii. Put the amount of Zinc powder you need.
iv. If it isn't the desired quantity, then add or subtract some of
the Zinc powder.
v. Once it is done, then measure the amount of copper sulphate in
the 50ml marked measuring tube and adjust the desired amount.
vi. Pour the copper sulphate into the beaker and take its room
temperature.
vii. Then add the Zinc powder and start stirring.
viii. Leave the thermometer in the glass recipient and record its
highest reached temperature.
ix. Rinse and dry the beaker.
x. Repeat steps 1 to 9.
How I will make it a fair test?
Ø Their must be the same amount of either Zinc or Copper Sulphate
(depending on which I choose to be the constant and which I choose to
and it is necessary for the back of the gas syringe to be taken out,
7. Using the stirring wire, stir the mixture until the solute completely dissolves. Turn the heat source off, and allow the solution to cool.
Volume's Effect on a Copper Sulphate Solution We are trying to find out if the current though a copper sulphate solutions volume is increased. To find this information out I shall perform an experiment using the following equipment; · 1 power pack · 1 beaker · 2 carbon rods for anode and cathode · 1 ammeter · 1 measuring cylinder · 2 crocodile clip wirers I shall also be using 60cm3 volume of copper sulphate in my preliminary results to decide upon the concentration of copper sulphate and the voltage I shall use. The following diagrams show the step by step process in which I will do my experiment; [IMAGE] [IMAGE] [IMAGE] [IMAGE] I will take 10 readings from 10cm3 to 100cm3. I will repeat my experiment to give my experiment a fair average. I will keep the power pack the beaker the carbon rods the crocodile clips the ammeter the concentration of copper sulphate and the measuring cylinder the same each time I do the experiment this experiment.
Planning Firstly here is a list of equipment I used. Boiling tubes Weighing scales Knife Paper towels 100% solution 0% solution (distilled water) measuring beakers potato chips Cork borer. We planned to start our experiment by doing some preliminary work. We planned to set up our experiment in the following way.
Plan 1. Collect 4 different sized beakers 2. Boil some water in the kettle 3. Pour 50ml into each beaker 4. After 1 minute check temperature 5.
It is important however to note that the NH4 and K ions are still in
For this experiment, you will add the measured amount of the first sample to the measured amount of the second sample into its respectively labeled test tube then observe if a reaction occurs. In your Data Table, record the samples added to each test tube, describe the reaction observed, if any, and whether or not a chemical reaction took place.
Experiment: First prepared a well plate with the appropriate amounts of distilled water, HCl, and Na2S2O3 in each well according to the lab manual. The well where the reaction
5.) One at a time, place your test tubes in the water bath and heat the first test tube to 25 , the second to 50 , the third to 75, and the last to 100 degrees c. Remeber to stir with your stirring rod every so often.
== § Test tubes X 11 § 0.10 molar dm -3 Copper (II) Sulphate solution § distilled water § egg albumen from 3 eggs. § Syringe X 12 § colorimeter § tripod § 100ml beaker § Bunsen burner § test tube holder § safety glasses § gloves § test tube pen § test tube method = == = =
2. In the large beaker, put water and boil it completely. After that, remove the beaker from heat. 3. Sample tubes (A-D) should be labeled and capped tightly.
To investigate the temperature change in a displacement reaction between Copper Sulphate Solution and Zinc Powder
that the rate of reaction must be fast enough to make as much of the
of Copper Sulphate. To do this I plan to work out the amount of water
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.