Comparative Study of Two Ultra-Concurrent Laboratories of Acid-Base Titration

The Remote Experimentation Laboratory of the Universidad Estatal a Distancia de Costa Rica (UNED) developed an Ultra-concurrent laboratory since the beginning of 2020, for the teaching of Acid-base Titration. This type of experimental practice is usually addressed in general, inorganic and/or analytical chemistry courses in different scientific and technological careers. The laboratory was widely used in different contexts. In the Universidad de Buenos Aires (UBA), in Argentina, more than 20000 students carried out the remote activity. After two years of sustained work with the laboratory, the need to redesign the laboratory was raised to prioritize the learning of some intellectual and sensorimotor procedures. This led, in 2022, to the design of a new Ultra-concurrent Laboratory that forms the first joint development of both universities.