So, rate law is the following equation the rate of my reaction in the forward direction is equal to the rate constant of the forward reaction times the concentration of methylacetate times the concentration of hydroxide. Now, notice my exponents are each one. That means there is a direct relationship between our rate of reaction and our concentration. In other words, if we double our concentration of methyl acetate while keeping this guy the same, we double our rate of reaction. Likewise, if we double this guy while keeping our methyl acetate the same, we also double our reaction rate. But if we double each guy, if this guy is multiplied by two and this guy is multiplied by two, that means this guy is quadrupled.