Question

Which of the following properties will be monitored to determine when the reagent has reacted with all of the analyte in solution?
color
temperature
pH
concentration

Answer 1

Depend on the specific reaction, for instance:

Colo --> if a reactant/product will form an specific absorbance of light, which will make visible light to turn the color of solution

temperature --> if exothermic, once the max. value of T is achieved, we can assume end of reaction. Vice versa for endhtermic reactions

ph --> if this is a titraiton; then ph changes drastically as we achieve the neutralizatio / equivalence point

concentration --> this is the BEST criteria for kinetc reactions.

Once concentation has achieved constant values over time, this is assumed to be in equilibrium (end of reaction)

then

the best answer will be concentration