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In aqueous solution, ammonia deprotonates a small fraction of the water to give ammonium and hydroxide according to the following equilibrium: . NH 3 + H 2 O ⇌ NH + 4 + OH −.. In a 1 M ammonia solution, about 0.42% of the ammonia is converted to ammonium, equivalent to pH = 11.63 because [NH +
Molar mass: 17.031 g·mol −1 Appearance Colourless gas Odor: ... Household ammonia or ammonium hydroxide is a solution of ammonia in water. Etymology
Molar mass: 18.039 g·mol −1 ... Ammonium is a modified form of ammonia that has an ... (the concentration of hydrogen ions is low and hydroxide ions is ...
Molar mass: 91.154 g·mol −1 ... Tetramethylammonium hydroxide (TMAH or TMAOH) is a quaternary ammonium salt with molecular formula N(CH 3) ...
The molar mass of atoms of an element is given by the relative atomic mass of the element multiplied by the molar mass constant, M u ≈ 1.000 000 × 10 −3 kg/mol ≈ 1 g/mol. For normal samples from Earth with typical isotope composition, the atomic weight can be approximated by the standard atomic weight [ 2 ] or the conventional atomic weight.
Standard molar entropy, S o liquid? J/(mol K) Heat capacity, c p: 80.80 J/(mol K) Gas properties Std enthalpy change of formation, Δ f H o gas: −45.556 ± 0.029 kJ/mol [3] Std Gibbs free energy change of formation, Δ f G o gas: −16.6 kJ/mol Standard molar entropy, S o gas: 192.77 J/(mol K) Heat capacity, c p: 35.06 J/(mol K) Heat capacity ...
Tetramethylammonium (TMA) is the simplest quaternary ammonium cation. It has the chemical formula [Me 4 N] + and consists of four methyl groups (−CH 3, denoted Me) attached to a central nitrogen atom. The cation is isoelectronic with neopentane (Me 4 C). It is positively-charged and can only be isolated in association with a counter-ion.
Molar mass: 53.49 g·mol −1 ... Ammonium chloride is an inorganic chemical compound with the chemical formula N H 4 Cl, ... like sodium hydroxide, ...