Qualitative analysis of group 4 cationsJessa Arino
The Group IV cations are Ba2+, Sr2+, Ca2+.
These metals form chlorides, sulfides and hydroxides that are soluble under that prevail in the precipitations of Group I, II, and III.
o make bromine in the laboratory here are few steps we need to follow; we need to find a chlorine source and react it with a solution of bromide ions. After formation of the bromine, it must be separated from the solution in a suitable way
Types of chemical reactions - Laboratory ActivityNarella Rebullar
These are synthesis, decomposition, combustion, single replacement and double replacement.
Laboratory Report.
University of Makati, Philippines.
III- BSE General Science
#Biochemistry #GeneralChemistry
• A chelate is formed when a metal ion coordinates with two (or more) donor groups of a single ligand. Tertiary amine compounds such as ethylenadiaminetetraacetic acid (EDTA) are widely used for the formation of chelates.
• Complexometric titrations with EDTA have been reported for the analysis of nearly all metal ions The endpoint of the titration is determined by the addition of Eriochrome Black T, which forms a colored chelate with Mg 2+ and undergoes a color change when the Mg 2+ is released to form a chelate with EDTA
p-BLOCK ELEMENTS,Boron Family (Group 13 Elements )
Compounds of Boron,Orthoboric acid (H3BO3),Borax (sodium tetraborate) Na2B4O7. 10H2O,Diborane,Compounds of Aluminium,Aluminium Oxide or Alumina (Al2O3),
Aluminum Chloride AlCl3,Carbon Family (Group 14 Elements):
Compounds of Carbon,Carbon Monoxide,Carbon di-oxide,
Carbides, Nitrogen Family (Group 15 Elements),
Ammonia (NH3),Phosphorus,Phosphorous Halides,Oxides of Phosphorus,Oxy – Acids of Phosphorus,Oxygen Family (Group 16 Elements) , Allotropes of Sulphur,Halogen Family ( Group 17 Elements,Inter halogen compounds,
Hydrogen Halides,Pseudohalide ions and pseudohalogens,Some important stable compound of Xenon
Qualitative analysis of group 4 cationsJessa Arino
The Group IV cations are Ba2+, Sr2+, Ca2+.
These metals form chlorides, sulfides and hydroxides that are soluble under that prevail in the precipitations of Group I, II, and III.
o make bromine in the laboratory here are few steps we need to follow; we need to find a chlorine source and react it with a solution of bromide ions. After formation of the bromine, it must be separated from the solution in a suitable way
Types of chemical reactions - Laboratory ActivityNarella Rebullar
These are synthesis, decomposition, combustion, single replacement and double replacement.
Laboratory Report.
University of Makati, Philippines.
III- BSE General Science
#Biochemistry #GeneralChemistry
• A chelate is formed when a metal ion coordinates with two (or more) donor groups of a single ligand. Tertiary amine compounds such as ethylenadiaminetetraacetic acid (EDTA) are widely used for the formation of chelates.
• Complexometric titrations with EDTA have been reported for the analysis of nearly all metal ions The endpoint of the titration is determined by the addition of Eriochrome Black T, which forms a colored chelate with Mg 2+ and undergoes a color change when the Mg 2+ is released to form a chelate with EDTA
p-BLOCK ELEMENTS,Boron Family (Group 13 Elements )
Compounds of Boron,Orthoboric acid (H3BO3),Borax (sodium tetraborate) Na2B4O7. 10H2O,Diborane,Compounds of Aluminium,Aluminium Oxide or Alumina (Al2O3),
Aluminum Chloride AlCl3,Carbon Family (Group 14 Elements):
Compounds of Carbon,Carbon Monoxide,Carbon di-oxide,
Carbides, Nitrogen Family (Group 15 Elements),
Ammonia (NH3),Phosphorus,Phosphorous Halides,Oxides of Phosphorus,Oxy – Acids of Phosphorus,Oxygen Family (Group 16 Elements) , Allotropes of Sulphur,Halogen Family ( Group 17 Elements,Inter halogen compounds,
Hydrogen Halides,Pseudohalide ions and pseudohalogens,Some important stable compound of Xenon
1. 35
Bromo – Bromine
Mass:79.904 u
Electron configuration: [Ar] 4s2
3d10
4p5
Melting point: 265.8 K, -7.2 °C, 19 °F
Boiling point: 332.0 K, 58.8 °C, 137.8 °F
Density: (Br2, liquid) 3.1028 g·cm−3
Discovery: antiquity.
Bromine (from Greek: βρῶμος, brómos, meaning "strong-smelling" or "stench") is a
chemical element with the symbol Br, and atomic number of 35. It is in the halogen
group (17). The element was isolated independently by two chemists, Carl Jacob
Löwig and Antoine Jerome Balard, in 1825–1826. Elemental bromine is a fuming red-
brown liquid at room temperature, corrosive and toxic, with properties between
those of chlorine and iodine. Free bromine does not occur in nature, but occurs as
colorless soluble crystalline mineral halide salts, analogous to table salt.
Bromine is rarer than about three-quarters of elements in the Earth's crust;
however, the high solubility of bromide ion has caused its accumulation in the oceans,
and commercially the element is easily extracted from brine pools, mostly in the
United States, Israel and China. About 556,000 tonnes were produced in 2007, an
amount similar to the far more abundant element magnesium.