What Are 2 Key Solubility Rules in Chemistry?

Learn the 2 essential solubility rules: nitrates are always soluble, and salts with alkali metals and ammonium dissolve in water.

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1. Nitrates (NO3-): All nitrate salts are soluble in water. 2. Alkali Metal Ions and Ammonium: Salts containing alkali metal ions (Li+, Na+, K+, Cs+, Rb+) and ammonium (NH4+) are soluble.

FAQs & Answers

  1. What makes nitrates highly soluble in water? Nitrates are highly soluble because the nitrate ion (NO3-) forms strong interactions with water molecules, enabling all nitrate salts to dissolve easily.
  2. Which alkali metal ions form soluble salts? Alkali metal ions like lithium (Li+), sodium (Na+), potassium (K+), cesium (Cs+), and rubidium (Rb+) form salts that are generally soluble in water.
  3. Are ammonium salts soluble in water? Yes, compounds containing the ammonium ion (NH4+) are soluble in water across a wide range of salts.

Watch More

For a deeper understanding of solubility, check out our videos covering more solubility rules, the solubility chart, and common insoluble salts to master chemistry concepts effectively.

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