A student attempts to determine the correct equation to describe the thermal decomposition reaction of AgNO3. Heating 4.7885 g of AgNO3 (i.e. about 5 g) gave 3.0406 g of residue. The following three equations have been determined as the most likely possibilities:
A student attempts to determine the correct equation to describe the thermal decomposition reaction of AgNO3. Heating 4.7885 g of AgNO3 (i.e. about 5 g) gave 3.0406 g of residue. The following three equations have been determined as the most likely possibilities:
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Also,which of the 3 given equations is most likely to be correct?
Transcribed Image Text:A student attempts to determine the correct equation to describe the thermal decomposition reaction of AgNO3.
Heating 4.7885 g of AgNO3 (i.e. about 5 g) gave 3.0406 g of residue. The following three equations have been
determined as the most likely possibilities:
1. 2 AgNO3(s) D 2 AgNO2(s) + O2(g)
2. 2 AGNO3(s) O 2 Ag(s) + 2 NO2(g) + O2(g)
3. 4 AGNO3(s) O 2 Ag20(s) + 4 NO2(g) + O2(g)
Using the data provided and the stoichiometry of the above equations, determine which of the equations correctly
describes the thermal decomposition of AgNO3.
Initial mass of A£NO3 = 4.7885 g
Initial number of moles of AgNO3 =
Table 1. Calculation of % Discrepancy
Expected # moles
Expected mass (g)
Percent
Possible
residue
(theoretical)
(theoretical)
Discrepancy
If AgNO2
If Ag
If Ag20
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