What is the ph at both endpoints of titration between diprotic tartaric acid and naoh? (all details provided below). the chemical equation for the titration: c4h4o6 + 2naoh > na2c4h4o6 + 2h2o here are the 1st and 2nd ka value for tartaric acid: ka1 = 9.2 x 10^-4, ka2 = 4.3 x 10^-5 molarity of tartaric acid = 5x10^-4 standard solution of naoh was made using 0.98g of solid naoh dissolved in 250ml of water. the molar mass of naoh is 39.997 g/mol.