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Formula Mass of a Compound: Definition & Formula

Instructions:

Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

What is the formula mass of carbon monoxide, or CO?

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1. What is the mass number of iron (rounded to the nearest whole number)?

2. Which is true of mass spectroscopy?

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About This Quiz & Worksheet

In chemistry, knowing what elements you're working with is very important. This quiz/worksheet combo will check your understanding of how you can calculate a compound mass, and how that mass can tell you what elements you are working with.

Quiz & Worksheet Goals

These assessments focus on testing what you know regarding:

  • The formula for carbon monoxide
  • What the mass number for iron is
  • True statements about mass spectroscopy
  • What to do with subscripts when calculating formula mass
  • How to find the formula mass for CO2

Skills Practiced

This quiz and worksheet will use the following skills:

  • Reading comprehension - ensure that you draw the most important information from the related lesson on calculating formula mass to determine what to do with a compounds' subscripts
  • Problem solving - use acquired knowledge to solve formula mass practice problems
  • Knowledge application - use your knowledge to answer questions about mass spectroscopy

Additional Learning

To review mass spectroscopy and its use, read the lesson called Formula Mass of a Compound: Definition & Formula. Objectives this lesson goes over include:

  • Explain what formula mass means in a chemistry context
  • Differentiate between molecule and compound
  • Outline the process of calculating formula mass
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