03.09 Molar Mass of Compounds

Virtual Lab

It is now time to complete another virtual lab. Be sure to record all observations and data in your notebook because you will need this information to answer questions on the assessment for this lesson.

Content on this page requires a newer version of Adobe Flash Player.

Get Adobe Flash player

Text-only Version


Answer the following questions in your notebook so that you have them available when you take the quiz for this lesson.

  1. The mass of tin in the evaporating dish remained constant throughout the experiment. This means that the mass change that any additional mass in the evaporating dish after the reaction is from the oxygen that bonded with the tin. Subtract the mass of the tin and dish from the mass of the compound and dish to determine the mass of the oxygen.

  2. Solve for the mass of tin in the dish by subtracting the mass of the clean, empty dish in Step 1 from the mass of the tin and dish in Step 2.

  3. Use the mass values of each element to determine the empirical formula of the tin oxide compound.

  4. Because this is the empirical formula of an ionic compound, the empirical formula is also the formula unit. What is the full name (including Roman numeral) of this compound?


It is time to complete your assignment for this lesson. Before you try this assignment, you should be able to name compounds and write chemical formulas from the names of compounds.

If you do not feel comfortable with these topics, go back and review the lesson or contact your instructor before attempting your assignment.

3.09 Molar Mass of Compounds

  1. Complete all tasks and readings that are outlined in the lesson.
  2. Complete the virtual lab.
  3. Access and take the "3.09 Molar Mass of Compounds" quiz.