Help plzz :(. You take a look at the label on a box of alka seltzer and find out that each tablet is 3.25 grams, with 1g Citric Acid, .325g Aspirin, and 1.900g Sodium Bicarbonate. Right away, you know that acids mixed with sodium bicarbonate produce carbon dioxide and water. This means the unbalanced equation for the reaction must be:

NaHCO3 + H3C6H5O7 → Na3C6H5O7 + CO2 + H2O

Your Challenge: Calculate how many alka seltzer tablets Charlie needs to buy in order to fill the basement with carbon dioxide. You should formulas and words to help your explanation.