Ethylene diamine tetra-acetic acid (EDTA) is awater-soluble compound that readily combines with metals, such ascalcium, magnesium, and iron. The molecular formula for EDTA isC10N2O8H16. Assume one EDTA molecule complexes(associates with) one metal atom.
A factory produces an aqueous waste that contains20 mg/L calcium and collects the waste in 44-gallon drums.What mass of EDTA would be need to be added to each drum to completely complex all of the calcium in the barrel.