determining rate

[Jasleen Kahlon]

I'm having difficulty with determining rates of equations when a list of concentrations is given. How is the rate determined?

[chemboi]

Are those concentrations given in the form of experiments increasing the concentration of one species, then seeing the change in overall reaction rate? If so, those let you figure out the reaction order with regard to each reactant, which can inform the overall instantaneous initial rate.

[Ashley Fang 2G]

Given multiple experiments with the initial concentration of reactants and the initial rate listed, you can divide one experiment over the other to determine how changes in concentration affect the rate.
For example, if doubling the concentration of one reactant doubles the rate, then we know that the exponent on that reactant in the rate equation is 1.
Similarly, if doubling the concentration of one reactant quadruples the rate, then we know that the exponent on that reactant in the rate equation is 2.

Rate = k[A]ⁿ[B]^m