Organic compounds that contain large proportions of nitrogen and oxygen tend to be unstable and are easily decomposed. Hexanitroethane, C₂(NO2)6, decomposes according to the equation C2(NO2)6 2NO2 + 4NO+2CO2 The reaction in CCl4 solvent is first order with respect to C₂(NO2)6. At 73.8 °C, k = 0.000330 s¹ and at 103.0 °C, k=0.0189 s ¹. (a) What is the half-life of C₂(NO2)6 at 73.8 °C? i eTextbook and Media (b) What is the half-life of C₂(NO2)6 at 103.0 °C? seconds seconds (c) If 0.100 mol of C₂(NO2)6 is dissolved in CCl4 at 73.8°C to give 1.00 L of solution, what will be the C₂(NO2)6 concentration after 50.0 minutes? i M

Chemistry for Engineering Students
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Chapter11: Chemical Kinetics
Section: Chapter Questions
Problem 11.36PAE: The reaction NO(g) + O,(g) — NO,(g) + 0(g) plays a role in the formation of nitrogen dioxide in...
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Organic compounds that contain large proportions of nitrogen and oxygen tend to be unstable and are easily
decomposed. Hexanitroethane, C₂(NO2)6, decomposes according to the equation
C₂(NO2)6→ 2NO2 + 4NO+2CO2
The reaction in CCl4 solvent is first order with respect to C₂(NO₂)6. At 73.8 °C, k = 0.000330 s¹ and at 103.0 °C,
k=0.0189 s ¹.
(a)
What is the half-life of C₂(NO2)6 at 73.8 °C? i
eTextbook and Media
(b)
What is the half-life of C₂(NO₂)6 at 103.0 °C? i
seconds
(c)
If 0.100 mol of C₂(NO2)6 is dissolved in CCl4 at 73.8°C to give 1.00 L of solution, what will be the C₂(NO2)6
concentration after 50.0 minutes? i
M
(e)
What is the rate constant at 154.8 °C? i
seconds
(d)
What is the value of the activation energy of this reaction, expressed in kilojoules?
kJ/mol
51
Transcribed Image Text:Organic compounds that contain large proportions of nitrogen and oxygen tend to be unstable and are easily decomposed. Hexanitroethane, C₂(NO2)6, decomposes according to the equation C₂(NO2)6→ 2NO2 + 4NO+2CO2 The reaction in CCl4 solvent is first order with respect to C₂(NO₂)6. At 73.8 °C, k = 0.000330 s¹ and at 103.0 °C, k=0.0189 s ¹. (a) What is the half-life of C₂(NO2)6 at 73.8 °C? i eTextbook and Media (b) What is the half-life of C₂(NO₂)6 at 103.0 °C? i seconds (c) If 0.100 mol of C₂(NO2)6 is dissolved in CCl4 at 73.8°C to give 1.00 L of solution, what will be the C₂(NO2)6 concentration after 50.0 minutes? i M (e) What is the rate constant at 154.8 °C? i seconds (d) What is the value of the activation energy of this reaction, expressed in kilojoules? kJ/mol 51
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