Question 2 [CO2, PO2, C4] [10 marks] Gaviscon is a generic an over-the-counter medicine used to treat acid indigestion and heartbum. The active pharmaceutical ingredients (API) in each Gaviscon tablet are aspirin (325mg ), citric acid (1.000103mg), and sadium bicarbonate (1.916103 mg ). For a single dose, two Gaviscon tablets are recommended and should be dissolved in 4.0 fluid ounces of water (1.0 fluid ounce =29.57mL). The following reaction occurs: C6H8O7(aq)+3NaHCO3(aq)yelds3H2O(l)+3CO2(Q)+Na3C6H5O7(Qq) For the given system (a) State your assumptions. [0.5 mark] (b) Calculate the volume of CO2 gas (mL) produced at 25C and 1 atm for a normal dose of Gaviscon usage. [2.5 marks] (c) You wake up feeling miserable before your Mathematics final exam, but you know you cant miss it. You grab some Gaviscon tablets and an 11-ounce bottle of water. You drink just enough water to leave 4.0 fuid ounces in the bottle. Then you drop in the two tablets, screw the cap tightly onto the bottle, and rush to your computer to sit for the final. Calculate the pressure inside the botte, assuming the temperature remains constant at 25C and neglecting the valume of the tablets. [2 marks] (d) How reasonable are your assumptions in Parts (b) and (c)? Justify your answer? (e) Calculate the pressure contributed by the produced gas. [1 mark] (f) Estimate the pressure in the container using the compressibility factor. Comments on your