1. write up equation. coefficient of NaOH will be 3 (because citric acid is triprotic)
2. find number of moles of NaOH. = conc x volume = 0.016225 moles
3. By stoichiometric ratios, number of moles of citric acid = one-third of the no of moles of NaOH. Therefore number of moles of citric =...