Question

Reaction: 1/2N2 + 3/2H2 --> NH3
Delta H = -46Kj/mol
1) Find delta H n(NH3)formed=5 mol. M(NH3=8.5g)
2) Find delta H
a)3 mol H2 + 3 mol N2
b) 3 mol H2 + 0.5 mol N2
M NH3 = 17 g/mol
???

Answer 1

I don't understand the question with your use of symbols. M stands for molarity but I think you mean molar mass NH3 is 17. I have no idea what M(NH3)= 8.5 g means nor H n(NH3) formed = 5 mol.

Answer 2

The mass of NH3 is 8.5 grams
And the number of moles of NH3 that was formed was 5 mol (n)
Any help? :)

Answer 3

DrBob222