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  • 2 June 2024
    christine ziadat
    R2.2 Rate of reaction & collision theory
    How can I find the unit plan that I saw before but can't locate anymore?
  • 29 May 2024
    Peter Durning
    Framing the Research Question
    Hi Geoff, Thanks so much for your quick reply. That is a great stress reliever. Pete
  • 29 May 2024
    Carol Camargo
    Error & uncertainty
    Ah, yes the total calculate enthalpy is 5! Thank you 
  • 29 May 2024
    Geoffrey Neuss
    Error & uncertainty
    Hi Carol, I think the confusion arises because there are 5 bond enthalpies involved in the calculation of the enthalpy change and the value for the calculated enthalpy change works out to be 5 kJ mol-1. As you say to find the percentage uncertainty...