The Great Peanut Race

The Great Peanut Race 2 Beakers (A & B) Each beaker has ~ 150 mL of liquid How many packing peanuts can each beaker hold?

The Great Peanut Race Explanation Water – polar covalent Acetone – non-polar covalent Packing peanuts – non-polar covalent

LIKE DISSOLVES LIKE Polar molecules dissolve polar molecules Water & methanol Non-polar molecules dissolve non-polar molecules Acetone & packing peanuts Oil & kerosene

Real World Applications Cleaning Clothes Polar stains can be dissolved with a polar solvent (cleaner) Non-polar stains can be dissolved with a non-polar solvent (cleaner) Cleaning Dishes & Oil Spills Grease/oil is non-polar and soap has a non-polar hydrophobic tail micelle