Questions: Solubility of Ionic Compounds Classify each of the compounds as soluble or not soluble: - manganese(II) nitrate - potassium carbonate - magnesium chloride

Solubility of Ionic Compounds Classify each of the compounds as soluble or not soluble: - manganese(II) nitrate - potassium carbonate - magnesium chloride
Transcript text: Solubility of Ionic Compounds Classify each of the compounds as soluble or not soluble: $\square$ manganese(II) nitrate $\square$ potassium carbonate $\square$ magnesium chloride
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Solution

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Solution Steps

Step 1: Understanding Solubility Rules

To determine the solubility of ionic compounds, we use general solubility rules. These rules help predict whether a compound will dissolve in water.

Step 2: Analyzing Manganese(II) Nitrate

Manganese(II) nitrate, \(\text{Mn(NO}_3\text{)}_2\), contains the nitrate ion (\(\text{NO}_3^-\)). According to solubility rules, all nitrates are soluble in water.

Step 3: Analyzing Potassium Carbonate

Potassium carbonate, \(\text{K}_2\text{CO}_3\), contains the potassium ion (\(\text{K}^+\)). Solubility rules state that all compounds containing alkali metal ions (such as potassium) are soluble.

Step 4: Analyzing Magnesium Chloride

Magnesium chloride, \(\text{MgCl}_2\), contains the chloride ion (\(\text{Cl}^-\)). Chlorides are generally soluble, except for those of silver, lead, and mercury. Since magnesium is not an exception, magnesium chloride is soluble.

Final Answer

  • Manganese(II) nitrate: \(\boxed{\text{soluble}}\)
  • Potassium carbonate: \(\boxed{\text{soluble}}\)
  • Magnesium chloride: \(\boxed{\text{soluble}}\)
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