Consider the following hypothetical aqueous reaction: A(aq) ----> B{aq). A flask is charged with 0.065 mol of A in a total volume of 100.0 mL. The following data are collected:

Time (min) 0 10 20 30 40
Moles of A 0.065 0.051 0.042 0.036 0.031

(a) Calculate the number of moles of B at each time in the table, assuming that there are no molecules of B at time zero, and that A cleanly converts to B with no intermediates