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For example, sulfuric acid (H 2 SO 4) is a diprotic acid. Since only 0.5 mol of H 2 SO 4 are needed to neutralize 1 mol of OH −, the equivalence factor is: f eq (H 2 SO 4) = 0.5. If the concentration of a sulfuric acid solution is c(H 2 SO 4) = 1 mol/L, then its normality is 2 N. It can also be called a "2 normal" solution.
Hydrochloric acid has been used for dissolving calcium carbonate, e.g. such things as de-scaling kettles and for cleaning mortar off brickwork. When used on brickwork the reaction with the mortar only continues until the acid has all been converted, producing calcium chloride, carbon dioxide, and water: CaCO 3 + 2 HCl → CaCl 2 + CO 2 + H 2 O
It is a dimensionless quantity with dimension of / and dimensionless unit of moles per mole (mol/mol or mol ⋅ mol −1) or simply 1; metric prefixes may also be used (e.g., nmol/mol for 10 −9). [5] When expressed in percent, it is known as the mole percent or molar percentage (unit symbol %, sometimes "mol%", equivalent to cmol/mol for 10 ...
Substance Formula 0 °C 10 °C 20 °C 30 °C 40 °C 50 °C 60 °C 70 °C 80 °C 90 °C 100 °C Barium acetate: Ba(C 2 H 3 O 2) 2: 58.8: 62: 72: 75: 78.5: 77: 75
Molar concentration or molarity is most commonly expressed in units of moles of solute per litre of solution. [1] For use in broader applications, it is defined as amount of substance of solute per unit volume of solution, or per unit volume available to the species, represented by lowercase : [2]
As 2 O 3 + 6 HCl → 2 AsCl 3 + 3 H 2 O. It can also be prepared by chlorination of arsenic at 80–85 °C, but this method requires elemental arsenic. [4] 2 As + 3 Cl 2 → 2 AsCl 3. Arsenic trichloride can be prepared by the reaction of arsenic oxide and sulfur monochloride. This method requires simple apparatus and proceeds efficiently: [8]
InCl 3 is a Lewis acid and forms complexes with donor ligands, L, InCl 3 L, InCl 3 L 2, InCl 3 L 3. For example, with the chloride ion it forms tetrahedral InCl 4 −, trigonal bipyramidal InCl 5 2−, and octahedral InCl 6 3−. [5] In diethyl ether solution, InCl 3 reacts with lithium hydride, LiH, to form LiInH 4.
Cerium(III) chloride (CeCl 3), also known as cerous chloride or cerium trichloride, is a compound of cerium and chlorine.It is a white hygroscopic salt; it rapidly absorbs water to form hydrates, which may be of variable composition.The hexa- and heptahydrate CeCl 3 ·7H 2 O are known. [1]