Lattice Energy Of Mgs
w Calculate the network energy of magnesium sulfide? 3
Mg (s) 'Mg (g) ”H ° = 148 kJ / mol
Mg (g) Â 'Mg2 + (g) + 2. Â ° = 2186 kJ / mol
S8 (s) Â'8S (g) ”H ° = 2232 kJ / mol
S (g) + 2e  'S2 (g) ”H ° = 450 kJ / mol
8Mg (s) + S8 (s) '8MgS (s)' H ° f = 2744 kJ / mol
Mg2 + (g) + S2 (g) 'MgS (s) ”H ° MgS =?
I fight because it's 8 instead of 1.
Thank you for your help!
Take the second equation and rotate it. It replaces the "HÂÂ" symbol.
Mg2 + (g) + 2e  'Mg (g) ”H ° = 2186 KJ / mol
Returns the fourth equation. Only one sign of change "H °"
S2 (g) 'S (g) + 2.' H ° = 450 KJ / mol
Divide the fifth equation by 8. It also divides the value of "HÂÂ" by 8.
Mg (s) + 1 / 8S8 (s) Â 'MgS (s) ”H ° = 343 KJ / mol
Reverse the first equation.
Mg (g) Â 'Mg (s) ”H ° = 148 KJ / mol
Returns the third equation and divides by 8.
S (g) '1 / 8S8 (s) "H ° = 279 KJ / mol
Now combine all the equations and you will get the equation you want. Add all the values of HÃ اور and you will get grid energy for MgS.
Mg2 + (g) + S2 (g) Â 'MgS (s) ”H ° MgS = 3406 KJ / mol
Magnesium sulfide network energy
