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CuCl 2 : Molar mass: 134.45 g/mol (anhydrous) 170.48 g/mol (dihydrate) Appearance dark brown solid (anhydrous) light blue solid (dihydrate) Odor: odorless
The molar mass of atoms of an element is given by the relative atomic mass of the element multiplied by the molar mass constant, M u ≈ 1.000 000 × 10 −3 kg/mol ≈ 1 g/mol. For normal samples from Earth with typical isotope composition, the atomic weight can be approximated by the standard atomic weight [ 2 ] or the conventional atomic weight.
Atomic number Element Molar mass Formal standard atomic weight s.a.w., formal short Note Z calculated; g·mol −1 A r, standard [2] A r, abridged and conventional [2]; C 9 H 8 O 4: 180.159 g·mol −1
The molecular mass and relative molecular mass are distinct from but related to the molar mass. The molar mass is defined as the mass of a given substance divided by the amount of the substance, and is expressed in grams per mol (g/mol). That makes the molar mass an average of many particles or molecules (potentially containing different ...
Molar mass: 35.45 g·mol −1 Conjugate acid: Hydrogen chloride: Thermochemistry Std molar
Chlorine (17 Cl) has 25 isotopes, ranging from 28 Cl to 52 Cl, and two isomers, 34m Cl and 38m Cl. There are two stable isotopes, 35 Cl (75.8%) and 37 Cl (24.2%), giving chlorine a standard atomic weight of 35.45.
Equivalent weights may be calculated from molar masses if the chemistry of the substance is well known: sulfuric acid has a molar mass of 98.078(5) g mol −1, and supplies two moles of hydrogen ions per mole of sulfuric acid, so its equivalent weight is 98.078(5) g mol −1 /2 eq mol −1 = 49.039(3) g eq −1.
Molar magnetic susceptibility: −40.5 × 10 −6 cm 3 /mol [8] Speed of sound: 206 m/s (gas, at 0 °C) CAS Number: Cl 2: 7782-50-5 : History; Discovery and first isolation: Carl Wilhelm Scheele (1774) Recognized as an element by: Humphry Davy (1808) Isotopes of chlorine