Answer: 104 KJ mol
Each NH3 has 3 N-H bonds
Explanation:
Enthalpy change(DHo)= sum t enthalpy of products - sum of enthalpy of Reactants
DHo= 2x3 dHo (N-H) - {dHo(N2)+3dHo(H-H)}
= 6(391)-(945+3(432))
=2346-(945+1296)
=2346-2241
DHo= 105 KJ/mole
Answer:-
Explanations:- Let's say the first molecule is A and the second molecule is B and the product molecule is C.
From given information, 2 molecules of A react with 3 molecules of B to produce 5 molecules of C.
We write the reactants on left side and the product on right side and there is an arrow between them from reactants towards the products.
So, the reaction could be represented as:
I think it’s letter b but not sure
Answer:
4.05mols
Explanation:
Avogadro's number: 6.022 x 10^23 refers to how many atoms are in 1 mol of carbon 12
To calculate moles in carbon divide number of atoms 2.44 x 10^24 by avogadro's number 6.022 x 10^23.
Which should give 2.44 x 10^24 atoms *1 mol /6.022 x 10^23 atoms= 4.05mols
O' is the molecule that is associated with oxygen and hydrogen