1.Show your calculations to determine the mass of NaHCO3 that would produce 0.05g of CO2. 2.If the pH is 2 after the NaHCO3 in Alka-Seltzer has reacted with HCl, who was in excess, HCl or NaHCO3? Remember to use a claim-evidence-reasoning (CER) format whenever you are explaining something or creating an argument. If you are not familiar with the CER format, please refer to page 5 of the Lab Manual Introduction. 3.How might the acetylsalicylic acid (ASA, or aspirin) and citric acid present in an Alka-Seltzer tablet impact this experiment?