in seawater in terms of the conditional stability constants of metal complexes and the corresponding ligand concentration. Based on the conditional stability constants of organic Cu(II) complexes,
In the original version of the metric system the base units could be derived from a specified length (the metre) and the weight [mass] of a specified volume ( 1â7003100000000000000â 1000 of a cubic metre) of pure water.
Metric units of mass. Mass is measured in grams (g), kilograms (kg) and tonnes. These are known as metric units of mass. 1 kg = 1000 g. 1 tonne = 1000 kg. Remember when estimating mass: 100g is about the mass of a small apple.1 kg is the mass of a bag of sugar or a litre of water.etric units of mass. Mass is measured in grams (g), kilograms (kg) and tonnes. These are known as metric units of mass. 1 kg = 1000 g. 1 tonne = 1000 kg. Remember when estimating mass: 100g is about the mass of a small apple.