Which atom has the smallest valence p atomic orbital carbon nitrogen sulfur?

1 answer:

7 0

Looking for the atom which has the smallest valence p atomic orbital among the choices (carbon, nitrogen, sulfur) requires one to look at a periodic table with electron configurations. The answer is carbon. It's p orbital only has 2 electrons. (Full configuration of carbon: 1s2 2s2 2p2) (Nitrogen has 2p3 while sulfur has 2p4.)

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77julia77 [94]

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A student prepares a 0.47mM aqueous solution of acetic acid CH3CO2H. Calculate the fraction of acetic acid that is in the dissoc

Aliun [14]

The fraction of acetic acid that is dissociated is 0.18

Why?

The chemical equation for the dissociation of acetic acid (HAc) is the following:

HAc(aq) + H₂O(l) ⇄ H₃O⁺(aq) + Ac⁻(aq)

To find the fraction of acetic acid that is in the dissociated form (f), we apply the following equation (Ka for acetic acid is 1.76*10⁻⁵). This equation comes from solving the equation of the equilibrium constant for the dissociated fraction of HAc:

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