The data in the table concern the lactonization of hydroxyvaleric acid at 25oC. They give the concentration C(t)of this acid in moles per liter after minutes.
(a) Find the average rate of reaction for the following time intervals:
(i) 2 (b) Plot the points from the table and draw a smooth curve through them as an approximation to the graph of the concentration function. Then draw the tangent at t = 2 and use it to estimate the instantaneous rate of reaction when t = 2.

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6. 0,0295 0.0570 C(t) 0.0800 0.0408 0.0210