# What is the formula mass of sulfur dioxide, SO2?

## Question:

What is the formula mass of sulfur dioxide, SO2?

## Empirical Formulas:

The formula mass of a compound is often a number much smaller than the actual mass of the compound. This is because formula mass is based on the empirical formula rather than the chemical formula. An empirical formula represents the smallest number of atoms from each element that still maintain the same ratio to one another.

## Answer and Explanation:

The formula mass of sulfur dioxide is 64 atomic mass units.

As there is only one sulfur atom, we know that the chemical formula is the same as the...

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Formula Mass of a Compound: Definition & Formula

from Holt McDougal Modern Chemistry: Online Textbook Help

Chapter 7 / Lesson 5
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