The compound iron chloride can exist with either iron(II) ions or iron(III) ions. Conduct Internet research to learn about the differences between iron(II) chloride and iron(III) chloride. Give the chemical formula for each compound. Describe their appearance and uses. Based on your findings, are these two forms of the same compound, or are they two completely different compounds?

Question

26-03-2020
Chemistry

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The compound iron chloride can exist with either iron(II) ions or iron(III) ions. Conduct Internet research to learn about the differences between iron(II) chloride and iron(III) chloride. Give the chemical formula for each compound. Describe their appearance and uses. Based on your findings, are these two forms of the same compound, or are they two completely different compounds?

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jamesesther1234 jamesesther1234 · Answer 1 · 2020-03-28T01:26:49+01:00

Answer:

Despite their similar use in wastewater treatment as flocculants and coagulants, FeCL2 and FeCl3 have different molecular formula, colours, and common names

Explanation:

FeCl3:

• Purple-red colour as anhydrous crystal and yellow in solution

• Used as catalyst

• In Iron (III) chloride the iron atoms have lost three electrons so you need three chlorine atoms, hence the chemical formula FeCl3.

• Common name: Ferric chloride

FeCl2:

• In Iron (II) chloride the iron atoms have lost two electrons so you need two chlorine atoms, hence the chemical formula FeCl2.

• Difference in formula means different molecular masses as well.

• White colour as anhydrous salt and green in solution

• Common name: Ferrous Chloride

pstnonsonjoku pstnonsonjoku · Answer 2 · 2020-03-28T01:34:39+01:00

Answer:

Iron III chloride is FeCl3

Iron II chloride is FeCl2

Explanation:

One can distinguish between iron III chloride and Iron II chloride by the appearance of the two substances. These two substances are different compounds. iron III chloride will appear dark green or purple-red depending on the viewing angle. Iron II chloride will appear white.

When Iron II chloride is dissolved in water and sodium hydroxide is added, a dirty green precipitate is obtained. When iron III chloride is dissolved in water and sodium hydroxide is added, a reddish-brown precipitate his obtained.