A flask is charged with 0.120 mol of A and allowed to react to form B according to the following hypothetical gas-phase reaction.A(g) -> B(g)The following data are collected. times (s)04080120160 moles of A0.1200.0630.0460.0260.015 (a) Calculate the number of moles of B at each time in the table.0 s ___mol40 s ___mol80 s ___mol120 s ___mol160 s ___mol(b) Calculate the average rate of disappearance of A for each 40 s interval, in units of mol/s.0 - 40 s ___mol/s40 - 80 s ___mol/s80 - 120 s___ mol/s120 - 160 mol/s ___mol/s

The reaction taking place is given as, => A(g) -----------> B(g) Given: Initial moles of A…

Answered: A flask is charged with 0.120 mol of A…

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter7: Statistical Data Treatment And Evaluation

Section: Chapter Questions

Problem 7.19QAP

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Question

A flask is charged with 0.120 mol of A and allowed to react to form B according to the following hypothetical gas-phase reaction.

A(g) -> B(g)

The following data are collected.


times (s)	0	40	80	120	160

moles of A	0.120	0.063	0.046	0.026	0.015

(a) Calculate the number of moles of B at each time in the table.

0 s
___mol

40 s
___mol

80 s
___mol

120 s
___mol

160 s
___mol

(b) Calculate the average rate of disappearance of A for each 40 s interval, in units of mol/s.

0 - 40 s
___mol/s

40 - 80 s
___mol/s

80 - 120 s
___ mol/s

120 - 160 mol/s
___mol/s