Calculate the enthalpy of formation for sulfur dioxide, s02, from its elements, sulfur and oxygen. Use the balanced chemical equation

To check, it should be (−296.81±0.20) kJ/mol . You should use NIST more often. I actually got −310.17 kJ/mol though.

the balanced chemical equation stipulates the formation of two moles of sulfur trioxide when two moles of sulfur dioxide and one mole of oxygen react do now is determine how much heat is given off when one mole of sulfur.

the answer for sodium is 0.186

the answer for rubidium is 0.251

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error