Propanol has a normal boiling point of 97.8°c. at 400 torr, it has a boiling point of 82.0°c. what is the heat of vaporization? 24.9 kj/mol38.7 kj/mol12.3 kj/mol44.4 kj/mol52.7 kj/mol

44.5 kJ/mol

Explanation:

Propanol has a normal boiling point of T₁ = 97.8°C = 371.0 K. "Normal" refers to a pressure P₁ = 1 atm = 760 torr. At 400 torr (P₂), it has a boiling point of T₂ = 82.0°C = 355.2 K. We can find the heat of vaporization (ΔHvap) using the two point form of the Clausius-Clapeyron equation.

law of conservation of matter

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

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