You must convert the 6.00 grams of H₂ into number of moles, and then use the stoichiometry of the reaction to find the number of moles of NH₃, which can be converted into volume using the ideal gas equation.

1. Number of moles of H₂

number of moles = mass in grams / molar mass

molar mass of H₂ = 2.016g/mol

number of moles = 6.00grams / 2.016g/mol = 2.97619mol

2. Number of moles of NH₃

i) Chemical equation:

3H₂(g) + N₂(g) → 2NH₃(g)

ii) Mole ratio:

3 mol H₂ : 2 mol NH₃

iii) Proportion:

x mol NH₃ / 2.97619mol H₂ = 3 mol NH₃ / 2 mol H₂

x = 4.4642857mol NH₃

3. Volume of NH₃

pV = nRT

V = nRT/p

V = 4.4642857mol × 0.08206 atm·liter/(K·mol) × 506K / 2.05atm

V = 90.4 liter

8 0

3 years ago

Modify isoleucine, below, to show its structure at pH 1 and pH 13.

NeTakaya

I have attached the answer

remember that when the solution is acidic, pH lower than 7. there are extra H+ that the amino acid can take. the basic part of the amino acid takes this extra hydrogen (the nitrogen).

when the pH is higher than 7, basic, there are not much H+ available. the amino acid loses a H+. the acid part of the amino acid loses the H (the carboxylic part).