En este curso en linea se tratan en primer lugar, las sales como compuestos que pueden modificar la acidez del medio. La explicacion de dichas modificaciones se realiza a partir de la teoria de Bronsted-Lowry. Estos conceptos se aplican al calculo de las concentraciones de las diferentes especies en disolucion justificando adecuadamente las aproximaciones realizadas y poniendo especial enfasis en el calculo del pH. En este curso de quimica se describe la naturaleza y aplicaciones de las disoluciones amortiguadoras, citando algunos ejemplos representativos de su importancia en el medio natural. El estudio de los equilibrios acido-base en este contexto se centra en el calculo del pH de dichas disoluciones y en sus modificaciones cuando se añaden cantidades limitadas de acidos o bases fuertes.
An excellent online course offered by edX: how it works
edX courses consist of weekly learning sequences. Each learning sequence is composed of short videos interspersed with interactive learning exercises, where students can immediately practise the concepts from the videos. The courses often include tutorial videos that are similar to small on-campus discussion groups, an online textbook, and an online discussion forum where students can post and review questions and comments to each other and teaching assistants. Where applicable, online laboratories are incorporated into the course.
edX offers certificates of successful completion and some courses are credit-eligible. Whether or not a college or university offers credit for an online course is within the sole discretion of the school. edX offers a variety of ways to take courses, including verified courses where students have the option to audit the course (no cost) or to work toward an edX Verified Certificate (fees vary by course). edX also offers XSeries Certificates for completion of a bundled set of two to seven verified courses in a single subject (cost varies depending on the courses).
An edX learning programme under Other Experiences
