Finding reaction rate [ENDORSED]

$aR \to bP, Rate = -\frac{1}{a} \frac{d[R]}{dt} = \frac{1}{b}\frac{d[P]}{dt}$

Cristian Carrasco 1F
Posts: 52
Joined: Fri Sep 29, 2017 7:06 am

Finding reaction rate

when solving reaction rate, do we use grams or moles?

Kelly Seto 2J
Posts: 30
Joined: Thu Jul 27, 2017 3:00 am

Re: Finding reaction rate

Always moles for concentrations

Katelyn 2E
Posts: 35
Joined: Sat Jul 22, 2017 3:01 am

Re: Finding reaction rate

keep in mind that the rate of reaction is equal to the change in concentration over the change in time. and as said above, concentration is always found in mols

Jessica Wakefield 1H
Posts: 58
Joined: Thu Jul 27, 2017 3:00 am

Re: Finding reaction rate

moles because the concentration is molarity which is mol/L
if youre given grams you have to convert to moles and then divide by the amount of liters to find the concentration

kaushalrao2H
Posts: 63
Joined: Thu Jul 13, 2017 3:00 am
Been upvoted: 2 times

Re: Finding reaction rate

use mols. in the book, some problems give amounts of a substance in terms of mmol (millimol), but you should try to convert this amount to mols by multiplying this value by 10^3.

Magdalena Palavecino 1A
Posts: 54
Joined: Fri Sep 29, 2017 7:04 am

Re: Finding reaction rate  [ENDORSED]

There was a question in which the answer was in mmol. I guess this is ok as long as what you are solving for maintains the units you used.