1. Weigh the initial amount of copper oxide: Before the student starts the experiment, they should accurately weigh the initial amount of copper oxide using a precise balance. This will give them the starting mass.

2. Perform the reaction: The student should then add the copper oxide to the reaction mixture. They should ensure that the reaction goes to completion. This can be done by waiting until no more changes are observed in the reaction mixture.

3. Remove the excess copper oxide: After the reaction is complete, the student should remove the excess copper oxide. This can be done by filtration. The mixture should be poured through a filter paper in a funnel. The copper oxide will remain on the filter paper while the rest of the mixture will pass through.

4. Dry the remaining copper oxide: The remaining copper oxide on the filter paper should be dried completely. This can be done by leaving it in a warm place for a period of time or by using a drying oven.

5. Weigh the remaining copper oxide: Once the remaining copper oxide is completely dry, it should be weighed again using the balance. This will give the final mass of the copper oxide.

6. Calculate the mass of copper oxide that reacted: The student can now calculate the mass of copper oxide that reacted by subtracting the final mass from the initial mass. This will give the mass of copper oxide that reacted during the experiment.

Question

1. Weigh the initial amount of copper oxide: Before the student starts the experiment, they should accurately weigh the initial amount of copper oxide using a precise balance. This will give them the starting mass.

2. Perform the reaction: The student should then add the copper oxide to the reaction mixture. They should ensure that the reaction goes to completion. This can be done by waiting until no more changes are observed in the reaction mixture.

3. Remove the excess copper oxide: After the reaction is complete, the student should remove the excess copper oxide. This can be done by filtration. The mixture should be poured through a filter paper in a funnel. The copper oxide will remain on the filter paper while the rest of the mixture will pass through.

4. Dry the remaining copper oxide: The remaining copper oxide on the filter paper should be dried completely. This can be done by leaving it in a warm place for a period of time or by using a drying oven.

5. Weigh the remaining copper oxide: Once the remaining copper oxide is completely dry, it should be weighed again using the balance. This will give the final mass of the copper oxide.

6. Calculate the mass of copper oxide that reacted: The student can now calculate the mass of copper oxide that reacted by subtracting the final mass from the initial mass. This will give the mass of copper oxide that reacted during the experiment.

Knowee AI · Accepted Answer

1. Weigh the initial amount of copper oxide: Before the student starts the experiment, they should accurately weigh the initial amount of copper oxide using a precise balance. This will give them the starting mass.

2. Perform the reaction: The student should then add the copper oxide to the reaction mixture. They should ensure that the reaction goes to completion. This can be done by waiting until no more changes are observed in the reaction mixture.

3. Remove the excess copper oxide: After the reaction is complete, the student should remove the excess copper oxide. This can be done by filtration. The mixture should be poured through a filter paper in a funnel. The copper oxide will remain on the filter paper while the rest of the mixture will pass through.

4. Dry the remaining copper oxide: The remaining copper oxide on the filter paper should be dried completely. This can be done by leaving it in a warm place for a period of time or by using a drying oven.

5. Weigh the remaining copper oxide: Once the remaining copper oxide is completely dry, it should be weighed again using the balance. This will give the final mass of the copper oxide.

6. Calculate the mass of copper oxide that reacted: The student can now calculate the mass of copper oxide that reacted by subtracting the final mass from the initial mass. This will give the mass of copper oxide that reacted during the experiment.

The student added excess copper oxide. Describe the steps that the student could include in the method to find the mass of copper oxide that reacted.

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