Mole ConceptHard
Question
A mixture of N2 and H2 is caused to react in a closed container to form NH3. The reaction ceases before either reactant has been totally consumed. At this stage, 2.0 moles each of N2, H2 and NH3 are present. The moles of N2 and H2 present originally were, respectively,
Options
A.4 and 4 moles
B.3 and 5 moles
C.3 and 4 moles
D.4 and 5 moles
Solution
N2 + 3H2 → 2NH3
a mole b mole 0
(a − x) mole (b − 3x) mole 2x mole
= 2 mole = 2 mole = 2 mole
Hence, x = 1, a = 3 and b = 5.
Create a free account to view solution
View Solution FreeMore Mole Concept Questions
On repeated sparking 10 mL of a mixture of carbon monoxide and nitrogen required 7 mL of oxygen for combustion. What was...The velour density of a mixture containing NO2 and N2O4 is 27.6 Mole frection of NO2 in the mixture is...In which of the following pairs, 10 g of each have an equal number of molecules ?...The density of a liquid is 1.2 g/mL. There are 35 drops in 2 mL. The number of molecules in 1 drop is : (molecular weigh...Mole fraction of the component A in vapour phase is x1 and mole fraction of component A in liquid mixture is x2 (PoA = v...