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Properties of substance:

ammonium hydroxide

Group of substances:

inorganic

Empirical formula (Hill's system for organic substances):

H5NO

Structural formula as text:

NH3 * H2O

Molar/atomic mass: 35.046

Melting point (°C):

-77

CAS №: 1336-21-6

Dissociation:

pKb (1) = 4.2 (25°C, water)
pKb (1) = 4.75 (25°C, water)

Standard molar enthalpy (heat) of formation ΔfH (298 K, kJ/mol)

-361.2 (l) [Ref.]

Standard molar Gibbs energy of formation ΔfG (298 K, kJ/mol)

-254 (l) [Ref.]

Standard molar entropy S (298 K, J/(mol·K))

165.6 (l) [Ref.]

Molar heat capacity at constant pressure Cp (298 K, J/(mol·K))

154.9 (l) [Ref.]

References:

  1. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 395 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru