Water forms according to the equation below: 2h2(g) + o2(g) jpg 2h2o(g) hrxn = -483.64 kj how much energy is released during the formation of 1 mol h2o(g)? kj

Answer : The amount of energy released is, -241.82 KJ

Explanation : Given,

The balanced chemical reaction is,

From this we conclude that,

As, 2 moles of released amount of energy = -483.64 KJ

So, 1 mole of released amount of energy =

Therefore, the amount of energy released is, -241.82 KJ

1. for the first question, we must find the mass of the anhydrous salt, mgso₄. the molar mass for mgso₄·7h₂o is 246.47 g/mol, while that of mgso₄ is 120.37 g/mol.7.834 g mgso₄·7h₂o * 1 mol mgso₄·7h₂o/246.47 g * 1 mol mgso₄/1 mol mgso₄·7h₂o * 20.37 g mgso₄/mol = 0.647 g mgso₄

2. mass of water = mass of sample - mass of anhydrous salemass of water = 7.834 - 0.647 = 7.19 gpercent water in hydrate = 7.19/7.834 * 100 = 91.74%

a  solution  is always transparent, light passes through with no scattering from solute particles which are molecule in size. the  solution  is homogeneous and does not settle out. a colloid is intermediate between asolution  and a  suspension. while asuspension  will separate out a colloid will not.