Stoichiometry Lab

Last updated almost 4 years ago

12 questions

Note from the author:

This is a virutal lab used during online learning. 

Watch the video for this lab in the folder in Schoology. Read the procedure for the lab.

Did you watch the video and read the procedure?

Evaluate this experiment. Why did we NOT get 100% yield? Is 100% yield realistic in a lab? What are some reasons that you would not get 100% yield in an experiment. Write several complete sentences of your analysis.

Should we be pleased with a percent yield in the high 90s?

Stoichiometry Lab

Evaluate this experiment. Why did we NOT get 100% yield? Is 100% yield realistic in a lab? What are some reasons that you would not get 100% yield in an experiment. Write several complete sentences of your analysis.

Should we be pleased with a percent yield in the high 90s?

Stoichiometry Lab

Watch the video for this lab in the folder in Schoology. Read the procedure for the lab.

Did you watch the video and read the procedure?

Evaluate this experiment. Why did we NOT get 100% yield? Is 100% yield realistic in a lab? What are some reasons that you would not get 100% yield in an experiment. Write several complete sentences of your analysis.

Should we be pleased with a percent yield in the high 90s?

Watch the video for this lab in the folder in Schoology. Read the procedure for the lab.

Did you watch the video and read the procedure?

What is the mass of the crushed tablet in grams? Get the mass from the video. Write a number and an unit.

What is the mass of the beaker and HCl in grams? Get the mass from the video. Write a number and an unit.

What is the total mass of the tablet, beaker and HCl? Write a number and a unit. Record your answer to 4 sig figs.

After the reaction, the mass of the beaker is taken again. Get this mass from the video. This is the mass of the tablet, acid, and beaker with the CO2 removed.

Write a number and a unit.

What is the mass of CO2 that was lost (escaped) in this reaction? You need to do a calcuation here.

Write you answer, unit, and compound. Recprd your answer to 2 sig figs.

Show your work on how you got your answer in #9.

Why does the total mass decrease after the chemical reaction?

What is the mass of the crushed tablet in grams? Get the mass from the video. Write a number and an unit.

What is the mass of the beaker and HCl in grams? Get the mass from the video. Write a number and an unit.

What is the total mass of the tablet, beaker and HCl? Write a number and a unit. Record your answer to 4 sig figs.

After the reaction, the mass of the beaker is taken again. Get this mass from the video. This is the mass of the tablet, acid, and beaker with the CO2 removed.

Write a number and a unit.

What is the mass of CO2 that was lost (escaped) in this reaction? You need to do a calcuation here.

Write you answer, unit, and compound. Recprd your answer to 2 sig figs.

Show your work on how you got your answer in #9.

Why does the total mass decrease after the chemical reaction?

Stoichiometry Lab

Evaluate this experiment. Why did we NOT get 100% yield? Is 100% yield realistic in a lab? What are some reasons that you would not get 100% yield in an experiment. Write several complete sentences of your analysis. Should we be pleased with a percent yield in the high 90s?

Stoichiometry Lab

Watch the video for this lab in the folder in Schoology. Read the procedure for the lab. Did you watch the video and read the procedure?

Evaluate this experiment. Why did we NOT get 100% yield? Is 100% yield realistic in a lab? What are some reasons that you would not get 100% yield in an experiment. Write several complete sentences of your analysis. Should we be pleased with a percent yield in the high 90s?

Watch the video for this lab in the folder in Schoology. Read the procedure for the lab. Did you watch the video and read the procedure?

What is the mass of the crushed tablet in grams? Get the mass from the video. Write a number and an unit.

What is the mass of the beaker and HCl in grams? Get the mass from the video. Write a number and an unit.

What is the total mass of the tablet, beaker and HCl? Write a number and a unit. Record your answer to 4 sig figs.

After the reaction, the mass of the beaker is taken again. Get this mass from the video. This is the mass of the tablet, acid, and beaker with the CO2 removed.Write a number and a unit.

What is the mass of CO2 that was lost (escaped) in this reaction? You need to do a calcuation here.Write you answer, unit, and compound. Recprd your answer to 2 sig figs.

The label says that each tablet contains 0.808 grams of CaCO3. This value is the theoretical amount of reactant because it is using data that resulted from a calculation or reference material. Now, calculate the percent yield of your experiment. Round your answer to 2 sig figs. Remember, your unit!

Show your work on how you got your answer in #9.

Why does the total mass decrease after the chemical reaction?

What is the mass of the crushed tablet in grams? Get the mass from the video. Write a number and an unit.

What is the mass of the beaker and HCl in grams? Get the mass from the video. Write a number and an unit.

What is the total mass of the tablet, beaker and HCl? Write a number and a unit. Record your answer to 4 sig figs.

After the reaction, the mass of the beaker is taken again. Get this mass from the video. This is the mass of the tablet, acid, and beaker with the CO2 removed.Write a number and a unit.

What is the mass of CO2 that was lost (escaped) in this reaction? You need to do a calcuation here.Write you answer, unit, and compound. Recprd your answer to 2 sig figs.

The label says that each tablet contains 0.808 grams of CaCO3. This value is the theoretical amount of reactant because it is using data that resulted from a calculation or reference material. Now, calculate the percent yield of your experiment. Round your answer to 2 sig figs. Remember, your unit!

Show your work on how you got your answer in #9.

Why does the total mass decrease after the chemical reaction?

Evaluate this experiment. Why did we NOT get 100% yield? Is 100% yield realistic in a lab? What are some reasons that you would not get 100% yield in an experiment. Write several complete sentences of your analysis.

Should we be pleased with a percent yield in the high 90s?

Watch the video for this lab in the folder in Schoology. Read the procedure for the lab.

Did you watch the video and read the procedure?

Evaluate this experiment. Why did we NOT get 100% yield? Is 100% yield realistic in a lab? What are some reasons that you would not get 100% yield in an experiment. Write several complete sentences of your analysis.

Should we be pleased with a percent yield in the high 90s?

Watch the video for this lab in the folder in Schoology. Read the procedure for the lab.

Did you watch the video and read the procedure?

After the reaction, the mass of the beaker is taken again. Get this mass from the video. This is the mass of the tablet, acid, and beaker with the CO2 removed.

Write a number and a unit.

What is the mass of CO2 that was lost (escaped) in this reaction? You need to do a calcuation here.

Write you answer, unit, and compound. Recprd your answer to 2 sig figs.

After the reaction, the mass of the beaker is taken again. Get this mass from the video. This is the mass of the tablet, acid, and beaker with the CO2 removed.

Write a number and a unit.

What is the mass of CO2 that was lost (escaped) in this reaction? You need to do a calcuation here.

Write you answer, unit, and compound. Recprd your answer to 2 sig figs.