A nurse is preparing to administer a medication to a patient via intravenous (IV) infusion. The medication is to be delivered at a rate of 125 mL/hour. The nurse has a vial containing 500 mg of the medication in 250 mL of a compatible diluent. The ordered dosage is 1 mg/kg for a patient weighing 75 kg. Calculate the total volume in mL that needs to be infused to deliver the medication correctly. Fill in the blank with the correct answer: _________ mL.