Question

this is a graph for a different reaction. here, the amount of product is measured in milligrams (mg). a mg is a thousandth of a gram. what is the reaction rate? 2 mg/s 4 mg/s 8 mg/s

Explanation:

Step1: Identify points on graph

From the graph, at time $t = 0$, amount of product $P_1=0$ mg and at time $t = 5$ s, amount of product $P_2 = 20$ mg.

Step2: Use reaction - rate formula

The reaction rate $r=\frac{\Delta P}{\Delta t}=\frac{P_2 - P_1}{t_2 - t_1}$. Substituting $P_1 = 0$ mg, $P_2=20$ mg, $t_1 = 0$ s and $t_2 = 5$ s, we get $r=\frac{20 - 0}{5-0}=\frac{20}{5}=4$ mg/s.

Answer:

4 mg/s