Aim- To show the effect of the particle size of solids on rate of reaction.
Hypothesis- If the size of the particles are smaller, there will be more collision between the particles as surface area will be more and therefore the rate of reaction will be more than if the size of the particle are larger.
Precautions:
1. Wear safety glasses to prevent chemicals from going into your eyes.
2. You should wear a lab coat to make sure not to spill anything on your clothes.
3. Wear clothing that covers your entire body so your skin does not get exposed to any chemicals if it falls on you.
4. Dispose of chemicals in the proper way that particular chemical should to protect the environment.
5. Be familiar with the first-aid kit if needed at any time.
…show more content…
Take a chip of zinc approximately 0.5 cm × 2 cm. Find its mass and take powdered zinc with approximately the same mass.
3. Add both to separate test tube with HCl.
4. Observe both solutions and write down your observations in an observation table.
Equation- Zn + 2HCl → ZnCl2 +H2
Aim- To show the effect of the particle size of solids on rate of reaction.
Hypothesis- If the size of the particles are smaller, there will be more collision between the particles as surface area will be more and therefore the rate of reaction will be more than if the size of the particle are larger.
Precautions:
1. Wear safety glasses to prevent chemicals from going into your eyes.
2. You should wear a lab coat to make sure not to spill anything on your clothes.
3. Wear clothing that covers your entire body so your skin does not get exposed to any chemicals if it falls on you.
4. Dispose of chemicals in the proper way that particular chemical should to protect the environment.
5. Be familiar with the first-aid kit if needed at any time.
Material Required:
1. Solid zinc (approx. 0.5 cm × 2 cm)
2. Powdered zinc
3. Balance
4. 2 Test tube
5. 1M Hydrochloric acid (approx. 20 ml)
Variables:
1. Controlled variables- (i) Volume of Hydrochloric acid
(ii) Size of zinc
(iii) Concentration of
It was researched that the greater the surface area of a solid, the faster the reaction rate. The collision theory states that the given reactants of a chemical reaction must successfully
3) Repeat the drying process just to be sure that the copper is completely dry, and again determine the mass of the copper and the beaker.
The rate of reaction increases when the surface area of a solid reactant is increased. This happens because by increasing the surface area we are also increasing the rate of collisions between the particles. When there is more of the reactant to react with the reaction speeds up. Therefore, my hypothesis is: the reaction will be faster when using small
If you see a deep blue color add more zinc powder until there is no change in color of the solution in the test tube.
Store dangerous, unpredictable chemicals in a flame resistant bureau or if non-combustible, or if in little sums, in a fume cupboard.
According to the collision theory, the rate of a reaction depends on the frequency of collisions between reacting particles. The more frequent the collisions, the faster the rate of the reaction. However, in order for the collisions to be effective, the particles must collide with sufficient energy (activation energy). Furthermore, the particles must collide with the proper orientation.
Your own personal conduct; by wearing the appropriate clothes, jewellery and protective clothing to ensure that risks of cross contamination and risks of harm are reduced.
Hand protection; wearing gloves, if you ever handle chemical it will protect your hands if it spills
* Size- If one of the reactants is a solid it will have a smaller
For example, spilling hydrochloric acid when handling it .Thus, procedures such as wearing gloves and goggles to minimize the risk of being in contact with hydrochloric acid are
Always be familiar with the hazards of a product before you start using it. You should look at an SDS, match the name of the product on the container to the one on the SDS, know the hazards, understand safe handling and storage instructions, as well as understand what to do in an
Wear safety goggles to protect the eyes from any splashes and wearing gloves is recommended when handling acids and
Introduction: The main purpose of this experiment is to determine the empirical formula of zinc iodide, and in addition, validate the law of conservation of mass by precisely determining the quantities of reactants and products. Empirical formula is the simplest type of chemical formula. The simplest ratio of the number of atoms of each element in the compound is determined by the empirical formal of a compound. Typically the ratio provided by the empirical formula contains whole numbers. On the other hand, there are molecular formulas in which gives the definite number of atoms of the element.
This website was used on October 3, 2014 to help develop a better understanding of collision theory in order to explain the various factors affecting the rate of reaction.
"There are various judgment skills precautionary measures that anybody can take to decrease their exposures to air contamination, including observing every day air contamination cautions and lessening open air exercises – particularly outside activity – amid high contamination periods, utilizing air filtration frameworks while inside, and utilizing the recycle setting of your auto ventilation framework while going in substantial movement," Eckel