Determine the mass of ferrous ammonium sulfate hexahydrate, F e ( N H 4 ) 2 ( S O 4 ) 2 6 H 2...


Determine the mass of ferrous ammonium sulfate hexahydrate, {eq}Fe(NH_4)_2(SO_4)_2 \cdot 6H_2O {/eq}, required to make 250.00 mL of a {eq}1.20 \times 10^{-3} {/eq} M solution of {eq}Fe^{2+} {/eq}. The molar mass of the hydrated salt is 392.13 g/mole.

Hydrated Salts:

Hydrated salts include water molecules in their structure that are not chemically bonded to the compound. The lack of a strong chemical bond makes it relatively easy to remove the water molecules via heating. Hydrates are identifiable by having a {eq}\rm \cdot XH_2O {/eq} included in their chemical formula or the term "hydrate" included in their name.

Answer and Explanation: 1

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To answer this question, we will first calculate the moles of {eq}\rm Fe^{2+} {/eq} ions needed from the given volume (250.00 mL) and concentration...

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Hydrates: Determining the Chemical Formula From Empirical Data


Chapter 9 / Lesson 8

Learn the anhydrate definition and what a hydrated compound is. Understand what an anhydrate is, the hydrate formula, and how to find the formula of the hydrate.

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