Chemistry Practice Problems Instantaneous Rate of Change Practice Problems Solution: Consider the following reaction: H2(g) + Br2(g) → ...

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Solution: Consider the following reaction: H2(g) + Br2(g) → 2HBr. The graph below shows the concentration of Br2 as a function of time.Use the graph to calculate the instantaneous rate of the reaction at 25 s.

Problem

Consider the following reaction: H2(g) + Br2(g) → 2HBr. The graph below shows the concentration of Br2 as a function of time.
A graph of time, in seconds, versus concentration, in molars. The initial concentration is one molar, then decraeses linearly at a rate of point one molar per ten seconds for the first thirty seconds. It then begins to curve with upward concavity, having a concentration of point six molar at fifty seconds.

Use the graph to calculate the instantaneous rate of the reaction at 25 s.