Sapling #7

[Anya Holbrook 1E]

For this question, I solved for the order for each reactant, and found that a=1, b=2, and c=0. So when I plugged them into the rate law (rate = k[A]^1[B]^2[C]^0), sapling said I got it wrong for some reason. Do I need to account for stoichiometric coefficients in the balanced chemical reaction somewhere in the rate law or did I do something else wrong?

[Darlene Lien 3E]

Hi, for the rate, since the reaction order for C is 0, you don't have to include it in your rate law. Your rate law for the reaction should just be rate=k[A][B]^2 (since [C]^0=1). Hope this helps!

[Megan Chan 3A]

When you type out the answer, it is not necessary to include the exponent for a term raised to the first power nor the [C] term since it will equal 1 given that it is raised to the zero power, so you rate law should be Rate = k[A][B]^2

[kateraelDis1L]

as said above, you don't have to include C because anything to the zero power is 1. This might be why you were getting the k value wrong. plug in your numbers given for rate and the concentrations of [A] and [B]^2 to solve for k.

[Tessa House 3A]

As others said, because the order of c is zero, it does not influence the rate. Therefore, you shouldn't include it in your rate law. Anything with a zero order does not influence the rate, and changing its concentration will not influence the rate of the reaction. You may have also included it somehow in your calculation for k.

[Daniela Santana 2L]

Hi! You included the C reactant in your answer. Since it is zeroth-order, it does not get included. I hope this helped :)