QUESTION 14 A 20.00-mL sample of a weak base is titrated with 0.0568 MHCI. At the endpoint, it is found that 17.88 ml. of titrant was used. What was the concentration of the weak base" a 1.01 M b.0.0635 M 0.0507 M d0.0568 M 1.59 x 10 M