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)62NO2+4NO+2CO2 The reaction in CCl4 solvent is first order with respect to C2(NO2)6.At70.4C,k=0.000348s1 and at 100.4C,k=0.0148s1. (a) What is the half-life of C2(NO2)6 at 70.4C ? seconds eTextbook and Media (b) What is the half-life of C2(NO2)6 at 100.4C ? seconds (c) If 0.100 mol of C2(NO2)6 is dissolved in CCl4 at 70.4C to give 1.00L of solution, what will be the C2(NO2)6 concentration after 50.0 minutes? M (d) What is the value of the activation energy of this reaction, expressed in kilojoules? kd//mol (e) What is the rate constant at 156.8C ? 51