What is the ratio of [A−]/[HA][A−]/[HA] at pH 5.75?5.75? The pKpK of formic acid is 3.75. [A−][HA]=[A−][HA]= Draw the structure of HAHA for formic acid. Select Draw Rings More Erase Select Draw Rings More Erase Select Draw Rings More Erase C O H Draw the structure of the conjugate base for formic acid. Select Draw Rings More Erase Select Draw Rings More Erase Select Draw Rings More Erase C O H What is the fractional charge on the acid at the given pH?