In early tests with the ligand 2-(2-Thiazolylazo)-p-cresol (TAC), we found that interference of the Fe(TAC) 1 complex may have competed with Fe(TAC) 2 for Fe. Also, i pmax was not reached in UV treated seawater after overnight equilibration ([TAC] = 40 Î¼ m, Î± Fe 3 + (TAC) 2 = 3.6 Ã 10 13).
BASE UNIT - kilogram (kg) - MASS. The standard for the kilogram is a cylinder of platinum-iridium alloy kept by the International Bureau of Weights and Measures in Paris. A duplicate at the National Bureau of Standards serves as the mass standard for the United States.
Metric Units of Mass. Mass is the amount of matter that makes up an object. Gram (g) is a metric unit used to measure the mass of small objects. Kilogram (kg) is equal to 1,000 grams, so it is used to measure the mass of larger objects.A paperclip has a mass of about 1 gram.ou can change from grams to kilograms by dividing. 5000 g = ___ kg Think: 1000 g = 1 kg 5000 divided by 1000 = 5 5000 g = 5 kg Remember: To measure an object that has a small mass, use grams. To measure an object that has a larger mass, use kilograms.