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Hello all I just need to know if the procedure I'm taking is right.
I need to find energy change of 1.05 Mol of KI(s) given that:
I2(s) → I2(g) : 62.44 KJ/mol
K(s) → K(g) : 180.4 KJ/mol
1/2 I2(g) → I(g) : 138.05 KJ/mol
K+(g) + e− → K(g) : −419 KJ/mol
I−(g) → I(g) + e− : 295.16 KJ/mol
Lattice energy for KI = −649 KJ/mol
I tried adding all the values and then multiplying by 1.05 mol but that doesn't seem to work so then what I did was multiply 1.05 by the lattice energy and then add up all the values but I still am not getting the correct answer. There is a diagram in my text and I followed every step yet am I doing something wrong?
I need to find energy change of 1.05 Mol of KI(s) given that:
I2(s) → I2(g) : 62.44 KJ/mol
K(s) → K(g) : 180.4 KJ/mol
1/2 I2(g) → I(g) : 138.05 KJ/mol
K+(g) + e− → K(g) : −419 KJ/mol
I−(g) → I(g) + e− : 295.16 KJ/mol
Lattice energy for KI = −649 KJ/mol
I tried adding all the values and then multiplying by 1.05 mol but that doesn't seem to work so then what I did was multiply 1.05 by the lattice energy and then add up all the values but I still am not getting the correct answer. There is a diagram in my text and I followed every step yet am I doing something wrong?
