For the experiment the total volume of the liquid must equal 40.0 mL for each trial. Fill in the following data table to indicate the amount of water to be added to the vinegar. Volume of Vinegar (mL) Volume of water (mL) 0.0 5.0 10.0 25.0 30.0 Use the following data to answer the questions… Vinegar Water Mass Mass Alka Mass Mass of Mass of (mL) (mL) liquid in Seltzer beaker & beaker & CO2 (loss beaker (g) Tablets (g) contents contents of mass) before rxn. after rxn. (g) (g) (g) A B A + B C (A + B) – C 5.0 35.0 145.0 3.23 148.23 147.60 0.63 20.0 20.0 148.0 3.27 150.12 Fill in the missing data from the second trial. To determine the mass of NaHCO3 in the Alka Seltzer tablet, you must use a stoichiometric calculation in which you start with the mass of CO2 produced and determine the amount of NaHCO3 that must have reacted to produce that. Find the mass of NaHCO3 in each tablet given in the data table above. (Hint: Stoichiometry: Mass of CO2 to Mass of NaHCO3) Trial 1: Trial 2: The % NaHCO3 in each Alka Seltzer tablet can be determined by dividing the grams of NaHCO3in the tablet (your answers from 5b) by the total mass of the tablet (from the data table). Find the % NaHCO3 for each tablet in the data table above. Trial 1: Trial 2:
For the experiment the total volume of the liquid must equal 40.0 mL for each trial. Fill in the following data table to indicate the amount of water to be added to the vinegar. Volume of Vinegar (mL) Volume of water (mL) 0.0 5.0 10.0 25.0 30.0 Use the following data to answer the questions… Vinegar (mL) Water (mL) Mass liquid in beaker (g) A Mass Alka Seltzer Tablets (g) B Mass beaker & contents before rxn. (g) A + B Mass of beaker & contents after rxn. (g) C Mass of CO2 (loss of mass) (g) (A + B) – C 5.0 35.0 145.0 3.23 148.23 147.60 0.63 20.0 20.0 148.0 3.27 150.12 Fill in the missing data from the second trial. To determine the mass of NaHCO3 in the Alka Seltzer tablet, you must use a stoichiometric calculation in which you start with the mass of CO2 produced and determine the amount of NaHCO3 that must have reacted to produce that. Find the mass of NaHCO3 in each tablet given in the data table above. (Hint: Stoichiometry: Mass of CO2 to Mass of NaHCO3) Trial 1: Trial 2: The % NaHCO3 in each Alka Seltzer tablet can be determined by dividing the grams of NaHCO3in the tablet (your answers from 5b) by the total mass of the tablet (from the data table). Find the % NaHCO3 for each tablet in the data table above. Trial 1: Trial 2: