# Chapter 2 - Sections 2.1-2.9 - Exercises - Problems by Topic: 83a

$$0.295 mol Ar$$

#### Work Step by Step

1. Use the molar mass of this element as a conversion factor in order to convert grams into moles. 2. $11.8 g Ar\times\frac{1 mol Ar}{39.948 g Ar}=0.295 mol Ar$

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