Ammonia gas can be prepared by the reaction

CaO(s)+2NH4Cl(s)⟶2NH3(g)+H2O(g)+CaC l2(s)

In an experiment, 28.5 g of ammonia gas, NH3 , is produced when it was predicted that 41.9 g NH3 would form.

What is the theoretical yield of NH3 ?
theoretical yield:
g
What is the actual yield of NH3 ?
actual yield:
g
What is the percent yield of NH3 ?
percent yield:
%
asappp

Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?