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What is Bromocresol Green: pH Indicator Study about?

This document describes an experiment to study the equilibrium between the weak acid (HA-) and weak base (A2-) species of the indicator bromocresol green in aqueous solution. Students will prepare solutions of bromocresol green at different concentrations and measure their UV-visible spectra, then use the spectra to calculate concentrations of each species. They will determine the dissociation coefficient α and pH from the spectral data and compare to pH measurements. The goal is to understand how dilution

Author

Zirəddin Tağıyev

Language

EN