Explain why Manganese (IV) Carbonate is Mn(CO3)2 a...

Question

Explain why Manganese (IV) Carbonate is Mn(CO3)2 and not Mn(CO3)4.

Jules Bruno · Accepted Answer

Manganese (IV) Carbonate is an ionic compound. An ionic compound is composed of a positive ion called a cation connected to a negative ion called an anion.Recall the rules for naming ionic compounds: 1. The metal is named normally and written first– For transition metals, we use Roman numerals to denote its charge.2. The nonmetal keeps its base name but has its ending change to –ide. 3. If Polyatomic ions are present, they retain their name **no need to change the ending to –ideFor this problem, we need to explain why Manganese (IV) carbonate is written as Mn(CO3)2 instead of Mn(CO3)4. [readmore]Based on the given name, we can determine the cation (positively charged), the anion (negatively charged) and then write their corresponding formula.   Cation: Manganese = Mn4+**Based on rules for naming, cation is written first** Its charge is based on the Roman numeral: IV                Anion: CO32-            **Chemical formula and charge (-2) of carbonate anion can be found online or in textbooksThe charge of the cation becomes the subscript of the anion, while the charge of the anion becomes the subscript of the cation:So we will write the cation first followed by the anion in the chemical formula: Mn2(CO3)4**Always enclose polyatomic anion (carbonate) in parenthesis to when subscript > 1 **Since the charge of carbonate is 2; we will first write a subscript for Mn**If charges have common multiples (2, 4) reduce to the simplest ratio**If charges are the same, no need to write subscriptSince their subscripts have a common multiple of 2, we will write the correct formula by reducing it to the simplest ratio:From Mn2(CO3)4, the correct chemical formula is Mn(CO3)2 (reduced to simplest ratio)We will now compare which of the two chemical formulas is correctly written:Mn(CO3)2 **This is the correct chemical formula, reduced to its simplest ratio Mn(CO3)4           **The subscript for CO3 shows the correct charge of the cation Mn4+ but not for the CO32- anion.

Problem: Explain why Manganese (IV) Carbonate is Mn(CO3)2 and not Mn(CO3)4.

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Problem Details

Problem: Explain why Manganese (IV) Carbonate is Mn(CO3)2 and not Mn(CO3)4.

FREE Expert Solution

Problem Details

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