4. What is the pH of a solution if the concentration of H+ is 5.3x 10^-9
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In an energy pyramid, which level has the most available energy?

Identify a strong intermolecular force of attraction between an alcohol

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?