The professor smiled, tapping the table. “That is the real density — measured, imperfect, full of tiny air bubbles and traces of water. The teórica is different. It’s a ghost.”
He handed her a molecular model of ethanol: two carbons, six hydrogens, one oxygen. “Calculate it,” he said. “From the crystal dream.” densidad teorica del etanol
Elena frowned. “But, Profesor, can’t I just look it up? 0.789 g/cm³ at 20°C?” The professor smiled, tapping the table
She ran to the professor. “I got 0.7887! Almost the same as the real one!” The professor smiled