What is δhf° for alcl3(s)?
given: 2al(s) + 3 cl2(g) → 2 alcl3(s)
δh°rxn = - 706...
Chemistry, 16.10.2019 16:10 kirstenb278
What is δhf° for alcl3(s)?
given: 2al(s) + 3 cl2(g) → 2 alcl3(s)
δh°rxn = - 706 kj
a) 109 kj/mol
b) 218 kj/mol
c) -353 kj/mol
d) -706 kj/mol
e) -218 kj/mol
*i think it’s c cause the standard enthalpies of formation for al and cl2 = 0 and
δh°rxn = products - reactants.
so, (2mol x δh°f alcl3(s)) - [(2mol x 0kj/mol) + (3mol x 0kj/mol)] = -706 kj
2mol x δh°f alcl3(s) = -706kj
δh°f alcl3(s) = -353kj/mol, right?
but when i googled the standard enthalpy of formation for alcl3(s), the table said it was about -704kj/mol, which means d is correct?
Answers: 2
Chemistry, 22.06.2019 03:30
In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?
Answers: 1
Chemistry, 22.06.2019 09:20
Sugar is dissolved in water. which is the solute? sugar neither both water
Answers: 1
Chemistry, 22.06.2019 18:00
Which three statements represent the benefits of performing experiments using computer simulations?
Answers: 2
Chemistry, 23.06.2019 07:30
Which of the following statements best explains why chemistry is testable a) it can measure data by experiments b) it cannot add new evidence c) it cannot be verified d) it is biased
Answers: 1
English, 21.11.2020 09:00
Chemistry, 21.11.2020 09:00
English, 21.11.2020 09:00
Arts, 21.11.2020 09:00
Health, 21.11.2020 09:00
Mathematics, 21.11.2020 09:00
Health, 21.11.2020 09:00
Mathematics, 21.11.2020 09:00
Chemistry, 21.11.2020 09:00