Please help ! 9:41 1MessagesA apclassroom.collegeboard.orgFor parts of the free-response question that requirecalculations, clearly show the method used and the stepsinvolved in arriving at your answers. You must show yourwork to receive credit for your answer. Examples andequations may be included in your answers whereappropriate.CaCO3(s) 2 CaO(s) + CO2(g)When heated strongly, solid calcium carbonate decomposesto produce solid calcium oxide and carbon dioxide gas, asrepresented by the equation above. A 2.0 mol sample ofCACO3(s) is placed in a rigid 100. L reaction vessel fromwhich all the air has been evacuated. The vessel is heated to898°C at which time the pressure of CO2 (g) in the vesselis constant at 1.00 atm, while some CaC03(s) remains inthe vessel.(a) Calculate the number of moles of CO2 (g) present in thevessel at equilibrium.I1.04 mol2 / 10000 Word Limit(b) Write the expression for Kp, the equilibrium constant forthe reaction, and determine its value at 898°C.Ikeq=(co2)?......SubmitIIIIENMENM 9:41 1MessagesA apclassroom.collegeboard.orgT.04TITOT2 / 10000 Word Limit(b) Write the expression for Kp, the equilibrium constant forthe reaction, and determine its value at 898°C.I Ukeq=(co2)?......1/ 10000 Word Limit(c) The experiment was repeated, but this time starting witha 4.0 mol sample of CaCO3(s). On the following graph,draw a curve showing how the pressure of CO2 (g) wouldchange over time as the vessel is heated to 898°C andequilibrium is established.2.00-1.000.00+TimeВ I0 / 10000 Word LiSubmitIIII!!!Pressure of CO2 (atm)

Given: Pressure = 1atm Volume = 100L Temperature = 898°C = 898 + 273 = 1171K

CACO3(s) 2 Ca0(s) + CO2(g) When heated strongly, solid calcium carbonate decomposes to produce solid calcium oxide and carbon dioxide gas, as represented by the equation above. A 2.0 mol sample of CACO3(s) is placed in a rigid 100. L reaction vessel from which all the air has been evacuated. The vessel is heated to 898°C at which time the pressure of CO2 (g) in the vessel

CACO3(s) 2 Ca0(s) + CO2(g) When heated strongly, solid calcium carbonate decomposes to produce solid calcium oxide and carbon dioxide gas, as represented by the equation above. A 2.0 mol sample of CACO3(s) is placed in a rigid 100. L reaction vessel from which all the air has been evacuated. The vessel is heated to 898°C at which time the pressure of CO2 (g) in the vessel

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter21: The Chemistry Of The Main Group Elements

Section: Chapter Questions

Problem 118IL

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Question

Please help !

9:41 1
Messages
A apclassroom.collegeboard.org
T.04TITOT
2 / 10000 Word Limit
(b) Write the expression for Kp, the equilibrium constant for
the reaction, and determine its value at 898°C.
I U
keq=(co2)?
......
1/ 10000 Word Limit
(c) The experiment was repeated, but this time starting with
a 4.0 mol sample of CaCO3(s). On the following graph,
draw a curve showing how the pressure of CO2 (g) would
change over time as the vessel is heated to 898°C and
equilibrium is established.
2.00-
1.00
0.00+
Time
В I
0 / 10000 Word Li
Submit
II
II
!!!
Pressure of CO2 (atm)

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