Chemistry Practice Problems Average Rate of Reaction Practice Problems Solution: Consider the following hypothetical aqueous reacti...

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# Solution: 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. Calculate the number of moles of  B at 10 min, assuming that there are no molecules of B at time zero.Time (min)010203040Moles of A0.0650.0510.0420.0360.031

###### Problem
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. Calculate the number of moles of  B at 10 min, assuming that there are no molecules of B at time zero.
 Time (min) 0 10 20 30 40 Moles of A 0.065 0.051 0.042 0.036 0.031
###### Solution

We are given the following general reaction for  a reaction wherein a flask is charged with 0.065 mol of A in a total volume of 100.0 mL:

A(aq) → B(aq)

We are asked to calculate the number of moles of B at 10 minutes assuming it is zero initially and given the data for the number of moles of A at different times:

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

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