Question & Answer: Your standardized NaOH(aq) solution is 0.202 M: your standardized H_2SO_4(aq) solution is…..

Your standardized NaOH(aq) solution is 0.202 M: your standardized H_2SO_4(aq) solution is 0.129 M. Some mass of NaHCO_3 has been added to 25.00 ml of your 0.129 M H_2SO_4(aq) solution. After warming to remove the CO_2(g) you find that 13.65 ml of your 0.202 M NaOH solution is needed to reach the phenolphthalein end point. Calculate the moles and mass of NaHCO_3 added to the 25.00 ml of your H_2SO_4(aq) solution.