Answer:
B) 1.30 ×10²⁴ molecules
Step-by-step explanation:
According to Avogadro law,
Equal volume of all gases at same temperature and pressure have equal number of molecules.
For equal volume the amount of gas (moles) would be same.
V ∝ n
V = Kn
k = proportionality constant
V₁/n₁ = V₂/n₂
V₁ = initial volume
n₁ = initial moles
V₂ = final volume
n₂ = final moles
So if ammonia has 1.30 ×10²⁴ molecules, hydrogen will have same molecules at same condition