The total volume required to reach the endpoint of a titration required more than the 50 ml total volume of the buret. an initial volume of 49.13±0.06 ml was delivered, the buret was refilled, and an additional 1.99±0.06 ml was delivered before the endpoint was reached. the titration of a blank solution without the analyte required 0.35±0.04 ml . calculate the endpoint volume corrected for the blank and its absolute uncertainty.