What is the Chemical Name of Water?
What is the Chemical Name of Water?
Water (chemical formula H2O) is an inorganic, transparent, tasteless, odorless, and nearly colorless chemical substance, which is the main constituent of Earth’s hydrosphere and the fluids of all known living organisms (in which it acts as a solvent). It is vital for all known forms of life, even though it provides no calories or organic nutrients. Its chemical formula, H2O, indicates that each of its molecules contains one oxygen and two hydrogen atoms, connected by covalent bonds. The hydrogen atoms are attached to the oxygen atom at an angle of 104.45°.”Water” is the name of the liquid state of H2O at standard conditions for temperature and pressure.
MOLARITY
Molarity is the concentration of a substance in a solution, expressed in moles of a solute contained in 1 liter of solution. Thus, a decimolar (abbreviated as 0.1 M) sodium chloride solution contains 0.1 mol (or 5.8443 g) of NaCl in 1 liter of solution.
MOLALITY
Molarity is the number of moles of a solute in 1000 g of solvent. Thus, a 0.1 molar solution of sodium chloride in water contains 0.1 mol (or 5.8443 g) of NaCl in 1000 g of H 2 O. This unit is used less frequently than molarity.
NORMALITY
Normality is the number of equivalents of a substance contained in 1 liter of solution. For systems that include acids, bases and salts, the equivalent is the amount of a substance that is consumed when interacting with 1 mole of hydrogen ions H + . For example, with the formation of a mole of sodium sulfate Na 2 SO 4 (1 mole = 142.0412 g), 1 mole of sulfuric acid loses 2 moles of H + . Thus, 1 mole of sodium sulfate contains 2 equivalents, and the normality of a one molar sodium sulfate solution is two (2N).
See also EQUIVALENT MASS .