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Rate Of Reaction Lab

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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

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