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10.28 g/cm 3: WEL (near r.t.) 10280 kg/m 3: LNG (at r.t.) 10.28 g/cm 3: CRC (near r.t.) 10.2 g/cm 3: 43 Tc technetium (Tc-98 ?) use: 11 g/cm 3: WEL (near r.t.) 11500 kg/m 3: LNG (at r.t.) (Tc-98) 11 g/cm 3: CRC (near r.t.) 11 g/cm 3: 44 Ru ruthenium; use: 12.45 g/cm 3: WEL (near r.t.) 12370 kg/m 3: LNG (at 20 °C) (12.45 rel. to water at 4 °C ...
During that period, the molar mass of carbon-12 was thus exactly 12 g/mol, by definition. Since 2019, a mole of any substance has been redefined in the SI as the amount of that substance containing an exactly defined number of particles, 6.022 140 76 × 10 23. The molar mass of a compound in g/mol thus is equal to the mass of this number of ...
Note that the especially high molar values, as for paraffin, gasoline, water and ammonia, result from calculating specific heats in terms of moles of molecules. If specific heat is expressed per mole of atoms for these substances, none of the constant-volume values exceed, to any large extent, the theoretical Dulong–Petit limit of 25 J⋅mol ...
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 isotopes), and the molecular mass the mass of one specific particle or molecule. The molar mass is ...
All values refer to 25 °C and to the thermodynamically stable standard state at that temperature unless noted. Values from CRC refer to "100 kPa (1 bar or 0.987 standard atmospheres)".
This is the energy per mole necessary to remove electrons from gaseous atoms or atomic ions. The first molar ionization energy applies to the neutral atoms. The second, third, etc., molar ionization energy applies to the further removal of an electron from a singly, doubly, etc., charged ion.
The Sun Devils (10-2, 7-2 Big 12, No. 16 CFP) needed a win and a little help to get into next Saturday's conference title game. Arizona State left no doubt about the winning part.
Historically, the mole was defined as the amount of substance in 12 grams of the carbon-12 isotope.As a consequence, the mass of one mole of a chemical compound, in grams, is numerically equal (for all practical purposes) to the mass of one molecule or formula unit of the compound, in daltons, and the molar mass of an isotope in grams per mole is approximately equal to the mass number ...