kaylee0424
07.11.2019 •
Chemistry
Methylamine has a vapor pressure of 344torr at −25∘c and a boiling point of −6.4∘c . find δhvap for methylamine.
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Ответ:
ln(P₁/P₂) = ΔH/R * (1/T₂ - 1/T₁)
-25 °C = 248 K and pressure is 344 torr
-6.4 °C = 266.6 K and pressure is 760 torr (atmospheric)
Using the equation:
ln(760/344) = ΔH/62.364 * (1/248 - 1/266.6)
ΔH = 175.7 kJ/mol
Ответ:
Which element(s) are likely to have their electrons stripped away in the formation of ionic bonds?
IV) silver
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