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lildanielmabien
23.11.2019 •
Chemistry
Compounds keep the chemical properties of the elements they are made from.
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Ответ:
Molar heat of vaporization (ΔH) = 24.7 kJ/ mol
Molar mass of chloroethane = 64.51 g/mol
q = (ΔH) * (n) where n is the number of moles.
so n = q / ΔH = 0.185 / 24.7 = 7.5 x 10⁻³ mole
number of moles = mass(g) / Molar mass
mass (g) = number of moles * molar mass
= (7.5 x 10⁻³) * (64.51) = 0.48 g