XY2(s) X2+(g) + 2y-(g)
DHsoln = DH (latt) + DH hydr.
= +2112 + (-1480 + 2(-364)
= +2112 +-2208
= -96 kJ/mole
Molar mass of XY2 is 88 + 71 = 159(g)
If 159g of XY2 evolve 96 kJ
? 31.8g of XY2 will evolve 31.8 ? 96
159
= 19.2kJ
Lywascomputers answered the question on August 19, 2018 at 18:22
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