Washing soda formula give as
Answers
Answer:
hydrogen gas am I right please tell me
Answer:
Not to be confused with sodium bicarbonate (baking soda), a similar compound.
Sodium carbonate, Na2CO3, (also known as washing soda, soda ash and soda crystals) is the inorganic compound with the formula Na2CO3 and its various hydrates. All forms are white, water-soluble salts. All forms have a strongly alkaline taste and give moderately alkaline solutions in water. Historically it was extracted from the ashes of plants growing in sodium-rich soils. Because the ashes of these sodium-rich plants were noticeably different from ashes of wood (once used to produce potash), sodium carbonate became known as "soda ash".[12] It is produced in large quantities from sodium chloride and limestone by the Solvay process.
Sodium carbonate
Skeletal formula of sodium carbonate
Sample of sodium carbonate
Names
IUPAC name
Sodium carbonate
Other names
Soda ash, washing soda, soda crystals
Identifiers
CAS Number
497-19-8 (anhydrous) ☑
5968-11-6 (monohydrate) ☒
6132-02-1 (decahydrate) ☒
3D model (JSmol)
Interactive image
ChEBI
CHEBI:29377 ☑
ChEMBL
ChEMBL186314 ☑
ChemSpider
9916 ☑
ECHA InfoCard
100.007.127
EC Number
207-838-8
E number
E500(i) (acidity regulators, ...)
PubChem CID
10340
RTECS number
VZ4050000
UNII
45P3261C7T ☑
CompTox Dashboard (EPA)
DTXSID1029621 Edit this at Wikidata
InChI
InChI=1S/CH2O3.2Na/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2 ☑
Key: CDBYLPFSWZWCQE-UHFFFAOYSA-L ☑
InChI=1/NaHCO3.2Na/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2
Key: CDBYLPFSWZWCQE-NUQVWONBAP
SMILES
[Na+].[Na+].[O-]C([O-])=O
Properties
Chemical formula
Na2CO3
Molar mass
105.9888 g/mol (anhydrous)
286.1416 g/mol (decahydrate)
Appearance
White solid, hygroscopic
Odor
Odorless
Density
2.54 g/cm3 (25 °C, anhydrous)
1.92 g/cm3 (856 °C)
2.25 g/cm3 (monohydrate)[1]
1.51 g/cm3 (heptahydrate)
1.46 g/cm3 (decahydrate)[2]
Melting point
851 °C (1,564 °F; 1,124 K) (Anhydrous)
100 °C (212 °F; 373 K)
decomposes (monohydrate)
33.5 °C (92.3 °F; 306.6 K)
decomposes (heptahydrate)
34 °C (93 °F; 307 K)
(decahydrate)[2][6]
Solubility in water
Anhydrous, g/100 mL:
7 (0 °C)
16.4 (15 °C)
34.07 (27.8 °C)
48.69 (34.8 °C)
48.1 (41.9 °C)
45.62 (60 °C)
43.6 (100 °C)[3]
Solubility
Soluble in aq. alkalis,[3] glycerol
Slightly soluble in aq. alcohol
Insoluble in CS2, acetone, alkyl acetates, alcohol, benzonitrile, liquid ammonia[4]
Solubility in glycerine
98.3 g/100 g (155 °C)[4]
Solubility in ethanediol
3.46 g/100 g (20 °C)[5]
Solubility in dimethylformamide
0.5 g/kg[5]
Basicity (pKb)
3.67
Magnetic susceptibility (χ)
−4.1·10−5 cm3/mol[2]
Refractive index (nD)
1.485 (anhydrous)
1.420 (monohydrate)[6]
1.405 (decahydrate)
Viscosity
3.4 cP (887 °C)[5]
Structure
Crystal structure
Monoclinic (γ-form, β-form, δ-form, anhydrous)[7]
Orthorhombic (monohydrate, heptahydrate)[1][8]
Space group
C2/m, No. 12 (γ-form, anhydrous, 170 K)
C2/m, No. 12 (β-form, anhydrous, 628 K)
P21/n, No. 14 (δ-form, anhydrous, 110 K)[7]
Pca21, No. 29 (monohydrate)[1]
Pbca, No. 61 (heptahydrate)[8]
Point group
2/m (γ-form, β-form, δ-form, anhydrous)[7]
mm2 (monohydrate)[1]
2/m 2/m 2/m (heptahydrate)[8]
Lattice constant
a = 8.920(7) Å, b = 5.245(5) Å, c = 6.050(5) Å (γ-form, anhydrous, 295 K)[7]
α = 90°, β = 101.35(8)°, γ = 90°
Coordination geometry
Octahedral (Na+, anhydrous)