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The density of sulfur hexafluoride is relatively high at room temperature and pressure due to the gas's large molar mass. Unlike helium, which has a molar mass of about 4 g/mol and pitches the voice up, SF 6 has a molar mass of about 146 g/mol, and the speed of sound through the gas is about 134 m/s at room temperature, pitching the voice down ...
Difluoroamino sulfur pentafluoride reacts with Lewis acids like KrF + AsF 6 − at -31 °C to yield SF 6, Kr, NF 3 and solid N 2 F + AsF 6 −.With AsF 5 at -196 °C (as liquid) it produces solid N 2 F + AsF 6 −, SF 6 and trans-N 2 F 2.
Sulfuryl fluoride (also spelled sulphuryl fluoride) is an inorganic compound with the formula SO 2 F 2.It is an easily condensed gas and has properties more similar to sulfur hexafluoride than sulfuryl chloride, being resistant to hydrolysis even up to 150 °C. [3]
Hexafluorophosphate is an anion with chemical formula of [PF 6] −.It is an octahedral species that imparts no color to its salts. [PF 6] − is isoelectronic with sulfur hexafluoride, SF 6, and the hexafluorosilicate dianion, [SiF 6] 2−, and hexafluoroantimonate [SbF 6] −.
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.
Molar mass: 108.07 g/mol Appearance colorless gas Density: 1.95 g/cm 3, −78 °C Melting point: −121.0 °C Boiling point: −38 °C Solubility in water. reacts
Tungsten(VI) fluoride, also known as tungsten hexafluoride, is an inorganic compound with the formula W F 6.It is a toxic, corrosive, colorless gas, with a density of about 13 kg/m 3 (22 lb/cu yd) (roughly 11 times heavier than air).
Hexafluorosilicic acid is an inorganic compound with the chemical formula H 2 SiF 6.Aqueous solutions of hexafluorosilicic acid consist of salts of the cation and hexafluorosilicate anion.