Procedure: Record the amount of vinegar you and your partner will be testing here: _____mL &____mL and in data Table 1. Measure the first amount of vinegar using a graduated cylinder and pour into a 250 mL beaker. Measure the amount of water you would need to add to make the total liquid volume = 40.0 mL using a graduated cylinder and pour into the same 250 mL beaker; stir. Record the mL of water in data table 1. Mass the beaker w/liquid and record in data table 1. Mass an Alka Seltzer tablet and record in data table 1. Place the Alka Seltzer tablet into the 250 mL beaker w/water. When the bubbling has stopped, stir the solution to make sure the tablet has completely dissolved and to remove any visible bubbles of carbon dioxide. Gently tap the stirring rod against the inside of the beaker to remove any drops of liquid. Mass the beaker and its contents. Record the mass and record in data table 1. Dispose of the solution in the beaker down the sink and wash the glassware! Data: Table 1: Partner Data A B A + B C (A + B) - C Exp. Volume Volume Mass of Mass of Total mass Total Mass of Mass of % of of beaker Alka of beaker mass of CO2 lost NaHCO3 in NaHCO3 # Vinegar Water & liquid Seltzer and beaker (g) tablet (g) in tablet (mL) (mL) (g) tablet contents and ((mass (g) before rxn. contents (g) after rxn. (g) tablet) x 100) 1 2 Calculations: Show ALL of your calculations used to complete Data Table 1. Trial 1: Trial 2:
Procedure: Record the amount of vinegar you and your partner will be testing here: _____mL &____mL and in data Table 1. Measure the first amount of vinegar using a graduated cylinder and pour into a 250 mL beaker. Measure the amount of water you would need to add to make the total liquid volume = 40.0 mL using a graduated cylinder and pour into the same 250 mL beaker; stir. Record the mL of water in data table 1. Mass the beaker w/liquid and record in data table 1. Mass an Alka Seltzer tablet and record in data table 1. Place the Alka Seltzer tablet into the 250 mL beaker w/water. When the bubbling has stopped, stir the solution to make sure the tablet has completely dissolved and to remove any visible bubbles of carbon dioxide. Gently tap the stirring rod against the inside of the beaker to remove any drops of liquid. Mass the beaker and its contents. Record the mass and record in data table 1. Dispose of the solution in the beaker down the sink and wash the glassware! Data: Table 1: Partner Data A B A + B C (A + B) - C Exp. # Volume of Vinegar (mL) Volume of Water (mL) Mass of beaker & liquid (g) Mass of Alka Seltzer tablet (g) Total mass of beaker and contents before rxn. (g) Total mass of beaker and contents after rxn. (g) Mass of CO2 lost (g) Mass of NaHCO3 in tablet (g) % NaHCO3 in tablet ((mass tablet) x 100) 1 2 Calculations: Show ALL of your calculations used to complete Data Table 1. Trial 1: Trial 2: