RUSH! Will upvote!

An EDTA solution prepared from its disodium salt was standardized using 1g of primary standard CaCO3(100.1g/mol) and consumed 28.50mL of the solution. The standard solution was used to determine the hardness of a 2.0-L sample of mineral water which required 35.57mL EDTA solution. What is the standardized concentration of EDTA? What IS the hardness of the water sample in terms of ppmCaCO3