the average mass of ONE MOLECULE of an ELEMENT/COMPOUND compared to 1/12th the RAM of an atom of CARBON 12
The carbon 12 standard is…
The mass of all atoms are measured relative to the mass of an atom of carbon-12, which is given a value of 12,000. This is called the carbon 12 standard.
Relative isotopic mass
Mass of a single isotope of an element relative to 1/12 the mass of an atom of carbon-12. This id most often derived from mass spectrometry where the mass of individual isotopes can be determined.
The relative atomic mass (Ar) is
The average mass of an atom of an element relative to 1/12th the mass of an atom of carbon-12.
Molecule
Two or more atoms chemically bonded together. Can be between different or the same atoms. Only non metals make molecules.
What’s a titration?
A laboratory procedure where a measured volume of one solution is added from a biurette to a fixed volume of another solution that has been measured with a Pipette until the reaction is complete. The end of the reaction is usually shown by the colour change of an activator.