First order

[Gabriela Carrillo 1B]

When given a chart, would we identify a reactant as being first order if when its molarity is doubled the rate is doubled?

[Justin Chu 1G]

Only if all the other reactants remain constant. Otherwise, you would be unable to tell which change in concentration is affecting the rate and how.

[Jiun Yue Chung 2I]

Generally if the concentration of a reactant doubles along with the reation's initial rate, it should be first order reaction. However, always do the arithmetic just to be sure :)

[Nora 1F]

Justin is correct! So just to clarify, a reactant is first order if when all other reactant concentrations are held constant and the concentration reactant of interest is doubled, the rate doubles.

[Josh Moy 1H]

If the other reactant's concentrations remain constant then yes it would be first order