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
Assuming fully decomposed, the volume of CO2 released at STP on heating 9.85g of BaCO3 (Atomic mass of Ba = 137) will be...Nitrogen (N), phosphorus (P) and potassium (K) are the main nutrients in plant fertilizers. According to an industry con...In Dumas method, 0.2 g of an organic nitrogenous compound gave 28 ml of N2 (volume reduced to 0o C and 1 atm). What is t...A quantity of 8 g CH4 is mixed with 28 g O2 and fired. Which of the following is correct about the combustion of CH4 in ...Dopamine is a neurotransmitter, a molecule that serves to transmit message in the brain. The chemical formula of dopamin...