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C&EN En Español

Química en Imágenes: Qué bonito es el pH

by Craig Bettenhausen
April 9, 2019
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Most Popular in Education

 

"Hoy, mi profesor de química nos ha hecho probar la eficacia de varios tampones de pH en una placa de 96 pocillos, y los resultados han sido espectaculares,” dice en Reddit ‘PollitaLoquita’, estudiante universitaria. Cada fila contiene un indicador de pH diferente, y cada columna un tampón a distintos pH - desde ácido a la izquierda hasta básico en la derecha. Los estudiantes descubrieron el rango de pH eficaz para cada indicador y practicaron, usando gráficos de colores, cómo determinar el pH usando indicadores.

A - Azul de timol
B - Timolftaleína
C - Rojo Congo
D - Col lombarda
E - Azul de bromotimol
F - Fenolftaleína
G - Índigo carmín
H - Indicador universal, una mezcla de distintos indicadores, incluídos algunos de los listados arriba.

Crédito PollitaLoquita

Do science. Take pictures. Win money. Enter our photo contest here.

Traducido al español por Fernando Gomollón para C&EN. La version original (en inglés) de este artículo está disponible aquí.

Chemical & Engineering News
ISSN 0009-2347
Copyright © 2024 American Chemical Society

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