Answer Happy

Given Problem: A 15.00 g sample containing mixed alkali and other inert components was dissolved and diluted to 300 mL with water. A 20 mL aliquot was titrated with 5.02 mL of 0.5352 M HCI to reach PHP endpoint. Another 20 mL aliquot was titrated to the BCG endpoint, using up 18.87 mL of titrant in the process. #1: The volume of titrant needed to neutralize NaOH is mL Choices: 0 5.02 8.83 9.44 10.04 #2: The volume of titrant needed to neutralize Na2CO3 is mL Choices: 0 5.02 8.83 9.44 10.04 #3: The volume of titrant needed to neutralize NaHCO3 is mL Choices: 0 5.02 8.83 9.44 10.04
#4: The percent weight of NaOH is % Choices: 0 10.75 17.56 28.48 39.70 #5: The percent weight of Na2CO3 % Choices: 0 10.75 17.56 28.48 39.70 #6: The percent weight of NaHCO3 is % Choices: 0 10.75 17.56 28.48 39.70