Question

Perform all calculations to the correct number of significantfigures and show all work. Vapor pressures of water are given inthe table in the experiment.

Question:1
If an Alka-Seltzer tablet contained 316 mg of aspirin, 1.927 x10⁰³ mg of sodium hydrogen carbonate (also known assodium bicarbonate), and 1.0008 x 10⁰³ mg of citric acidand nothing else, what is the percent, by mass, of sodium hydrogencarbonate in the tablet?






Question:2
Using the tablet information from Question 1, calculate the molesof CO₂ you would theoretically expect from 0.273 gramsof an Alka-Seltzer tablet at 720. torr and 286 K.






Question:3
You conduct an experiment where N₂ is collected overwater in a 2.33 L flask at 18^oC. At the conclusion ofthe experiment, the total pressure in the flask is 412 torr. Whatis the pressure of N₂ in the flask?






Question:4
A student reacted a sample of NaHCO₃ with acid under thesame conditions that will be used in lab. The total volume of gascollected plus the correction factor was 53.8 mL at a totalpressure of 674 torr and 21^oC. How many moles ofCO₂(g) were produced?