Give the name from the formula or the formula from the name for each of the following hydrated ionic compounds.

311. Give the name from the formula or the formula from the name for each of the following hydrated ionic compounds. Part C: Mg(BrO2)2 · 6H2O. Spell out the full name of the compound. Part D: Beryllium sulfite tetrahydrate. Express your answer in chemical formula. AZd: A chemical reaction does not occur for this question. Request Answer Karson
     MISSED THIS? Read Section 3.5 (Pages 100-105). Watch KCV 3.5, IWE 311. Give the name from the formula or the formula from the name for each of the following hydrated ionic compounds. Part C: Mg(BrO2)2 · 6H2O. Spell out the full name of the compound. Part D: Beryllium sulfite tetrahydrate. Express your answer in chemical formula. AZd: A chemical reaction does not occur for this question. Request Answer Karson

The Correct Answer and Explanation is:

Here are the correct answers:

Part C: Magnesium bromite hexahydrate Part D: BeSO3·4H2O

Explanation

Hydrated ionic compounds consist of a cation and an anion, along with water molecules incorporated into their crystalline structure. The water molecules are expressed using a dot notation, indicating the number of water molecules per formula unit.

Part C: Magnesium bromite hexahydrate

The given formula is Mg(BrO₂)₂ · 6H₂O.

• Mg²⁺ represents the magnesium cation.
• BrO₂⁻ is the bromite anion. The -ite suffix indicates that bromine is bonded to oxygen in a lower oxidation state compared to bromate (BrO₃⁻).
• The ₂ subscript on BrO₂ shows that two bromite anions are required to balance the charge of magnesium.
• 6H₂O denotes the presence of six water molecules per formula unit. When naming hydrated compounds, the water molecules are indicated using Greek prefixes: hexa means six.

Thus, the full name is magnesium bromite hexahydrate.

Part D: Beryllium sulfite tetrahydrate

The compound name is beryllium sulfite tetrahydrate, so we need to determine its formula.

• Beryllium (Be²⁺) is the cation.
• Sulfite (SO₃²⁻) is the anion.
• Since Be²⁺ and SO₃²⁻ have equal charges, they combine in a 1:1 ratio, forming BeSO₃.
• The presence of tetrahydrate means four water molecules (4H₂O) are attached.

Thus, the correct formula is BeSO₃·4H₂O.

These hydrated ionic compounds are important in chemistry and play significant roles in various applications, including crystallization and compound stability in aqueous solutions