Potassium chloride, KCl, sodium sulfate, Na₂SO₄, glucose, C₆H₁₂O₆, carbon dioxide, CO₂ and ammonium phosphate, (NH₄)₃PO₄, are soluble in water. Which one produces the largest number of dissolved particles per mole of dissolved solute?

Question

Quizplus · Accepted Answer

To determine the number of dissolved particles per mole of dissolved solute, we need to consider the dissociation of each compound in water.

1. KCl dissociates into K+ and Cl- ions, so it produces 2 dissolved particles per mole of dissolved solute.

2. Na2SO4 dissociates into 2 Na+ ions, 1 SO42- ion, and 12 H2O molecules (due to hydration), so it produces 15 dissolved particles per mole of dissolved solute.

3. Glucose (C6H12O6) does not ionize in water, so it produces 1 dissolved particle per mole of dissolved solute.

4. CO2 does not ionize in water, but it does react with water to form H+ and HCO3- ions (in a reversible reaction), so it produces 2 dissolved particles per mole of dissolved solute.

5. (NH4)3PO4 dissociates into 3 NH4+ ions, 1 PO43- ion, and 14 H2O molecules (due to hydration), so it produces 18 dissolved particles per mole of dissolved solute.

Therefore, the compound that produces the largest number of dissolved particles per mole of dissolved solute is (NH4)3PO4, E.

Potassium Chloride, KCl, Sodium Sulfate, Na2SO4, Glucose, C6H12O6, Carbon Dioxide

Potassium Chloride, KCl, Sodium Sulfate, Na₂SO₄, Glucose, C₆H₁₂O₆, Carbon Dioxide