A 5 liter container at 30 C contains 3 grams of H2 gas. What is the pressure inside the container?

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?

What is the chemical name of the compound ti2o3?

Why would a doctor most likely restrict a patient's contact with other people while the patient receives internal radiation