More information: Yinghe 应和 Zhao 赵 et al, Ionized Carbon in Galaxies: The [C ii] 158 μm Line as a Total Molecular Gas Mass Tracer Revisited, The Astrophysical Journal (2024). DOI ...

measured in a unit called the mole (mol). The mass of one mole of any substance is numerically equal to its relative formula mass or relative atomic mass For example, one mole of carbon is 12 g ...

The size of the atoms and their mass has a lot to do with the density of the substance Another factor is how the atoms are arranged in the substance. Polyethylene is made up only of carbon and ...

Mass balance ensures that the carbon formerly locked up in biomass ... Life on Earth depends on the recycling of essential chemical elements. While an organism is alive, its chemical makeup ...

To calculate the M r for a substance: work out how many atoms of each element are in the chemical ... formula for carbon dioxide is CO 2. It has one carbon atom (relative atomic mass = 12.0 ...