Performing the same experiment described on your lab manual, a student used a 0.400 g sample of Alka-Seltzer and the mass of CO2 was found to be 0.114 g. Based on this result, answer the following questions:Determine the % mass of NaHCO3 in the sample. (enter your answer to 3 significant digits)Determine the mass of NaHCO3 in the tablet assuming the mass of the tablet is 3.50 g. (enter your answer to 3 significant digits)

Citric acid and sodium bicarbonate have an acid-base reaction, which is the basis for Alka-Seltzer's behavior. The carbon dioxide that is produced as a result of this reaction is what causes the water to fizz when an Alka-Seltzer tablet is added. The balanced reaction between the citric acid C6H8O7 and sodium bicarbonate NaHCO3 is as follows, C6H8O7 + 3NaHCO3 → 3CO2 + Na3C6H5O7 + 3H2O From the question have, The mass of the Alka-Seltzer sample is given by = 0.400 g The mass of the carbon dioxide (CO2) is given by = 0.114 gmThe moles of CO2 can be calculated by, The molar mass of CO2 = 44 g/mole Moles of CO2 = Mass of CO2Molar mass of CO2 =0.114 g44 g/mole=0.0026 moles From the chemical reaction, we can conclude that 3 moles of carbon dioxide production from the 3 moles of sodium bicarbonate. 3 moles of CO2 produced from = 3 moles of NaHCO31 moles of CO2 produced from =1 moles of NaHCO30.0026 moles of CO2 = 0.0026 moles of NaHCO3The moles of sodium bicarbonate are 0.0026 moles. The mass of sodium bicarbonate can be calculated with the help of its molar mass, The molar mass of the NaHCO3 = 84 g/mole Mass of NaHCO3= Moles of NaHCO3×Molar mass of NaHCO3=0.0026 moles×84 g/mole=0.2184 g The mass % of the NaHCO3 can be calculated by, Mass % of NaHCO3 = Mass of NaHCO3Mass of sample ×100=0.21840.400 ×100=54.6% The mass% for the NaHCO3 in the sample is found to be 54.6% Now as we know the percentage of the NaHCO3 in the sample we can determine the mass of NaHCO3 in the 3.50 g of tablet by, Mass of NaHCO3 = 54.6100×3.50 g=1.91 g The mass of NaHCO3 in the 3.50 g of the tablet is found to be 1.91 g.