In this I/GCSE Chemistry blog post, we will be looking at different practicals that affects the rates of reaction through concentrations, sf, temperature and catalyst.
Surface area
- Put a set mass of magnesium in hydrochloric acid
- Time the reaction
- Change the from of magnesium keeping the mass the same (powder, wire, strips)
- The more surface area (the smaller the pieces of magnesium) the faster the reaction
Concentration
- Put a set mass of marble chips into dilute hydrochloric acid
- Time the reaction
- Change the ratio of water to hydrochloric acid
- The more concentrated the hydrochloric acid (the lower the ratio of water) the faster the reaction
Temperature
- Put a set mass of magnesium powder into a set mass of hydrochloric acid
- time the reaction
- Carry out this reaction at different temperatures
- The higher the temperature the faster the rate of reaction
Catalyst
- If you have hydrogen peroxide it will not decompose
- If you put it with manganese dioxide it will decompose into water and oxygen
- The manganese dioxide will be unaltered by the reaction
- The more of the catalyst the faster the reaction
That's all for this post!
References:
https://www.google.com/url?sa=i&url=https%3A%2F%2Fedu.rsc.org%2Fexperiments%2Fthe-rate-of-reaction-of-magnesium-with-hydrochloric-acid%2F1916.article&psig=AOvVaw1j2ecNBKxOdx7LzV_LO5qd&ust=1627965574512000&source=images&cd=vfe&ved=0CAsQjRxqFwoTCLjtsMDCkfICFQAAAAAdAAAAABAD
https://www.google.com/url?sa=i&url=https%3A%2F%2Fwww.tutormyself.com%2Fedexcel-igcse-2017chem-315%2F&psig=AOvVaw2Cgh3KpkS0A2WSAHaorXXc&ust=1627965611827000&source=images&cd=vfe&ved=0CAsQjRxqFwoTCJCdp9LCkfICFQAAAAAdAAAAABAD
Drafted by Venetia (Chemistry)