A flask is charged with 0.124 mol of A and allowed to react to form B according to the reaction A(g) →B(g). The following data are obtained for [A] as the reaction proceeds:Time (s)0.0010.020.030.040.0Moles of A0.1240.1100.0880.0730.054How many moles of B are present at 30 s? The reaction 2NOBr(g) → 2NO(g) + Br2(g) is a second-order reaction with a rate constant of 0.80M-s- at 11⁰C. If the initial concentration of NOBr is 0.0440 M, what is the concentration of NOBr after 10.0 s?

The given reaction is A(g)----->B(g), 1 mole of A is reacting to produce 1 mole of B Therefore,…

Answered: A flask is charged with 0.124 mol of A…

Introductory Chemistry For Today

8th Edition

ISBN:9781285644561

Author:Seager

Publisher:Seager

Chapter8: Reaction Rates And Equilibrium

Section: Chapter Questions

Problem 8.15E

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A flask is charged with 0.124 mol of A and allowed to react to form B according to the reaction A(g) →B(g). The following data are obtained for [A] as the reaction proceeds:

Time (s)	0.00	10.0	20.0	30.0	40.0
Moles of A	0.124	0.110	0.088	0.073	0.054

How many moles of B are present at 30 s?

The reaction 2NOBr_(g) → 2NO_(g) + Br_2(g) is a second-order reaction with a rate constant of 0.80M^-s^- at 11⁰C. If the initial concentration of NOBr is 0.0440 M, what is the concentration of NOBr after 10.0 s?

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