Rean University -C 4Jump to... Je 1084- Fall17-DOSS Activities and Due Dates > Required HW 21 12/2017 11:5S PM Print 4/10 11/6/2017 11:24 PM Calculator Periodic Table Gra ion 9 of 10 Map Strong base is dissolved in 755 mL of 0.200 M weak acd (K 4.87 x10) to make a buffer with a pH of 4.15. Assume that the volume remains constant when the base is added ay Calculate the pK, value of the acid and determine the number of moles oi acid intially present. Number Number mol HA When the reaction is complete, what is the concentration ratio of conjugate base to acid? Number [åµ.llD HA How many moles of strong base were initially added? Number mol OH ton Check AnswerO Neat E