A chemist needs to follow the formation of a dark-blue Cu(NH3)4 2+ complex in aqueous…
CHEMISTRY · Single correct · AP · Chemistry · Properties of Substances and Mixtures · Properties of Substances and Mixtures
Problem
A chemist needs to follow the formation of a dark-blue Cu(NH3)4 2+ complex in aqueous solution over several minutes. Which of the following properties is most appropriate to monitor continuously in order to determine the reaction rate?
(a) Measure the electrical conductivity of the solution continuously
(b) Monitor the pH of the solution continuously with a pH probe
(c) Record the absorbance of the solution at a wavelength where the complex strongly absorbs
(d) Measure the temperature of the reaction mixture at regular short intervals