posted by jen on .
use standard enthalpies of formation to calculate delta Hrxn for the following reaction. 2H2S(g)+3O2(g)-->2H2O(l)+2SO2(g) express the answer using four significant figures
Delta Hrxn = ? kJ
DHfrxn = (n*DHf products)-(n*DHf reactants)
Look up DHf values in your text or notes.
we dnt take notes that's why im so lost
Then look in your text. Most texts have a set of delta Hof values.
And I might suggest you take notes. You can't possibly remember everything.
honestly all we do is labs during class i would love to take notes
Do you have a table in your text? I may be able to find a table on the web or I can look up some values if your text doesn't have them listed.