ATAR Notes: Forum

VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Chemistry => Topic started by: Graphite on August 25, 2010, 08:03:09 pm

Title: Can you assume?
Post by: Graphite on August 25, 2010, 08:03:09 pm

If HCl+NaOH=>NaCl+H2O Enthalpy=60kJ/mol
Then H2SO4+NaOH enthalpy=60x2=120kJ/mol?

Title: Re: Can you assume?
Post by: akira88 on August 25, 2010, 08:07:44 pm

I don't think so.

Title: Re: Can you assume?
Post by: pooshwaltzer on August 25, 2010, 08:22:12 pm

H2SO4 + 2NaOH -> Na2SO4 + 2H2O

...when you react 0.5 mol H2SO4 with 1 mol NaOH, you get -57 kJmol-1. if you use 1 mol H2SO4 with 2 mol NaOH you will get about -114 kJmol-1.