"Mud" + "blood" - A very colorful demonstration

• Gordon F. Hambly ^[1]
  1. [1] John Abbott College

     John Abbott College

     Canadá

     
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 75, Nº 1 (January), 1998, págs. 56-56
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • A red solution of phenolphthalein indicator in base is added to a muddy manganese dioxide solution, and a clear solution is obtained almost immediately. This dramatic demonstration involves both redox and acid-base chemistry and can serve as a review of these subjects.