Question

What are the units of k in the following expression: rate = k [A][B]?
A) s-1

B) M-1s-1

C) M-2s-1

D) M

Answer 1

Will give medal!!

Answer 2

@dan815 @iGreen

Answer 3

\(rate\) always has to have units of mol/(L*s), so the units of k must be changed to match based on the rate order.

Answer 4

How do you do that?

Answer 5

@JFraser

Answer 6

the equation (with units) must look like this

Answer 7

\[\frac{mol}{L*s} = k*\frac{mol}{L}*\frac{mol}{L}\]

Answer 8

what do the units of \(k\) have to be in order to make that a true statement?