A student standardizes his/her DCP solution. S/he prepares a vitamin C solution that contains 53.9 mg vitamin C in 100.00 mL. S/he takes a 10.00 mL aliquot, adds water and buffer, and then titrates with 36.5 mL DCP to reach the end point. S/he next titrates an unknown sample with this DCP solution and reaches the end point at 40.5 mL. How many mg of ascorbic acid were present in the unknown sample