# Problem: Choose the thermochemical equation that illustrates ΔH°f for Li 2SO4. A) 2 Li+(aq) + SO42- (aq) → Li2SO4(aq) B) 2 Li(s) + 1/8 S8(s, rhombic) + 2 O2(g) → Li2SO4(s) C) Li2SO4(aq) → 2 Li +(aq) + SO42-(aq) D) 8 Li2SO4(s) → 16 Li(s) + S 8(s, rhombic) + 16 O2(g) E) 16 Li(s) + S8(s, rhombic) + 16 O2(g) → 8 Li2SO4(s)

###### FREE Expert Solution
80% (223 ratings)
###### Problem Details

Choose the thermochemical equation that illustrates ΔH°f for Li 2SO4.
A) 2 Li+(aq) + SO42- (aq) → Li2SO4(aq)
B) 2 Li(s) + 1/8 S8(s, rhombic) + 2 O2(g) → Li2SO4(s)
C) Li2SO4(aq) → 2 Li +(aq) + SO42-(aq)
D) 8 Li2SO4(s) → 16 Li(s) + S 8(s, rhombic) + 16 O2(g)
E) 16 Li(s) + S8(s, rhombic) + 16 O2(g) → 8 Li2SO4(s)

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Formation Equations concept. You can view video lessons to learn Formation Equations. Or if you need more Formation Equations practice, you can also practice Formation Equations practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty ofChoose the thermochemical equation that illustrates ΔH°f for...as low difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Jules took 1 minute and 36 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Tang's class at USF.