state the chemical properties of sulphur dioxide
Answers
Chemical formula
SO
2
Molar mass
64.066 g mol−1
Appearance
Colorless gas
Odor
Pungent; similar to a just-struck match[1]
Density
2.6288 kg m−3
Melting point
−72 °C; −98 °F; 201 K
Boiling point
−10 °C (14 °F; 263 K)
Solubility in water
94 g/L[2]
forms sulfurous acid
Vapor pressure
237.2 kPa
Acidity (pKa)
1.81
Basicity (pKb)
12.19
Magnetic susceptibility (χ)
−18.2·10−6 cm3/mol
Viscosity
0.403 cP (at 0 °C
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These are both properties:
Sulfur is an odorless, tasteless, light yellow solid. It is a reactive element that given favorable circumstances combines with all other elements except gases, gold, and platinum. Sulfur appears in a number of different allotropic modifications: rhombic, monoclinic, polymeric, and others. The rhombic structure is the most commonly found sulfur form. Each allotropic form differs in solubility, specific gravity, crystalline, crystalline arrangement, and other physical constants. These various allotropes also can exist together in equilibrium in definite proportions, depending on temperature and pressure.
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