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A 100.0 mL flask is filled with 0.065 moles of A and allowed to react to...

A 100.0 mL flask is filled with 0.065 moles of A and allowed to react to form B according to the reaction below. The following experimental data are obtained for the amount of A as the reaction proceeds. What is the average rate of appearance of B in units of M/s between t = 10 min. and t = 30 min.? Assume that the volume of the flask is constant. A(g) → B(g)

Time 0.0 10.0 20.0 30.0 40.0

Moles of A 0.065 0.051 0.042 0.036 0.031

a) 1.3 x10 ^-4 M/s

b) 8.3 x 10 ^-5 M/s

c) 2.3 X10 ^-4 m/s

d) 1.5 x 10^ -4m/s

e) 1.0 x 10 6^ -4 m/s

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