L’épreuve de physique-chimie, sur laquelle 34 % des lycéens plancheront le 11 ou le 12 mai, de 14 h à 17 h 30, comporte trois exercices indépendants. Ils traitent des thématiques abordées lors des ...
Cette semaine, vous allez découvrir les estimation : intervalle de confiance en Mathématiques, un bilan acide/base, pH, Ke et KA. en Chimie, et en Philosophie, le travail fondateur d'humanité. Trois ...
An acid-base indicator is a substance that changes color as the pH of the solution changes. Indicators work because they are weak acids which when in solution, exist in equilibrium with their ...
An acid-base indicator is a substance that changes color as the pH of the solution changes. Indicators work because they are weak acids which when in solution, exist in equilibrium with their ...
A well-established technique, acid-base titration is an analytical method used to determine the concentration of an unknown acid or base. In practice, it involves adding a solution of known strength ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback