Recent content by aruhland

  1. A

    Chemistry Calculate Qv from Qp: deltaH and deltaU

    Qp=deltaH Qv=deltaU deltaH=deltaU + deltanRT Qv=deltaH - deltanRT =-2051 kj/mol - (11mol-31mol)(8.3145x10-3J/Kmol)(298.15K) =-2001.42 kJ/mol I thought I did this correctly but it comes up as wrong for my online assignment. Any suggestions? deltaH=enthalpy change deltaU=internal energy change
  2. A

    Chemistry Constant Volume Heat of Combustion from heat capacity of calorimeter

    Q=heat capacity calorimeter*(-)change in T*moles =0.009089mol*-6.8C*4.38kj/C =-0.2707kj/mol This answer is wrong but it was the only one I could come up with right now. I just noticed units in the answer would be wrong too. Any suggestions?