5.64. Alka-Seltzer® is an over-the-counter medicine used to treat acid indigestion and heartburn. The active pharmaceutical ingredients (API) in each Alka-Seltzer tablet are aspirin (325 mg), citric acid (1.000 × 103 mg), and sodium bicarbonate (1.916 × 103 mg). For a single dose, two Alka-SeltzerⓇ tablets are dissolved in 4.0 fluid ounces of water (1.0 fluid ounce = 29.57 mL), causing the following reaction: CHO(aq) + 3NaHCO3(aq) →3H₁₂O(l) + 3CO2(g) + Nas C6H5O7 (aq) citric acid sodium citrate a. What volume of CO2 gas (mL) at 25°C and 1 atm would be produced by a normal dose of Alka-SeltzerⓇ? Assume ideal-gas behavior and that the reaction goes to completion. Answer 1.46 L b. You wake up feeling miserable before your material-and-energy-balances final exam, but you know you can't miss it. You grab some Alka-Seltzer® and an 11-ounce bottle of water. You drink just enough water to leave 4.0 fluid ounces in the bottle (you've had lots of practice with this). Then you drop in the two tablets, screw the cap tightly onto the bottle, and rush out the door. Calculate the pressure inside the bottle, assuming the temperature remains constant at 25°C and neglecting the volume of the tablets. c. How reasonable are the assumptions of ideal-gas behavior in Parts (a) and (b)?
5.64. Alka-Seltzer® is an over-the-counter medicine used to treat acid indigestion and heartburn. The active pharmaceutical ingredients (API) in each Alka-Seltzer tablet are aspirin (325 mg), citric acid (1.000 × 103 mg), and sodium bicarbonate (1.916 × 103 mg). For a single dose, two Alka-SeltzerⓇ tablets are dissolved in 4.0 fluid ounces of water (1.0 fluid ounce = 29.57 mL), causing the following reaction: CHO(aq) + 3NaHCO3(aq) →3H₁₂O(l) + 3CO2(g) + Nas C6H5O7 (aq) citric acid sodium citrate a. What volume of CO2 gas (mL) at 25°C and 1 atm would be produced by a normal dose of Alka-SeltzerⓇ? Assume ideal-gas behavior and that the reaction goes to completion. Answer 1.46 L b. You wake up feeling miserable before your material-and-energy-balances final exam, but you know you can't miss it. You grab some Alka-Seltzer® and an 11-ounce bottle of water. You drink just enough water to leave 4.0 fluid ounces in the bottle (you've had lots of practice with this). Then you drop in the two tablets, screw the cap tightly onto the bottle, and rush out the door. Calculate the pressure inside the bottle, assuming the temperature remains constant at 25°C and neglecting the volume of the tablets. c. How reasonable are the assumptions of ideal-gas behavior in Parts (a) and (b)?
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter15: Acid–base Equilibria
Section: Chapter Questions
Problem 98AP
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Please correct answer and don't use hand rating and don't use Ai solution
Transcribed Image Text:5.64. Alka-Seltzer® is an over-the-counter medicine used to treat acid indigestion and heartburn. The active pharmaceutical ingredients (API) in each
Alka-Seltzer tablet are aspirin (325 mg), citric acid (1.000 × 103 mg), and sodium bicarbonate (1.916 × 103 mg). For a single dose, two Alka-SeltzerⓇ
tablets are dissolved in 4.0 fluid ounces of water (1.0 fluid ounce = 29.57 mL), causing the following reaction:
CHO(aq) + 3NaHCO3(aq) →3H₁₂O(l) + 3CO2(g) + Nas C6H5O7 (aq)
citric acid
sodium citrate
a. What volume of CO2 gas (mL) at 25°C and 1 atm would be produced by a normal dose of Alka-SeltzerⓇ? Assume ideal-gas behavior and that the reaction
goes to completion.
Answer
1.46 L
b. You wake up feeling miserable before your material-and-energy-balances final exam, but you know you can't miss it. You grab some Alka-Seltzer® and
an 11-ounce bottle of water. You drink just enough water to leave 4.0 fluid ounces in the bottle (you've had lots of practice with this). Then you drop in
the two tablets, screw the cap tightly onto the bottle, and rush out the door. Calculate the pressure inside the bottle, assuming the temperature remains
constant at 25°C and neglecting the volume of the tablets.
c. How reasonable are the assumptions of ideal-gas behavior in Parts (a) and (b)?
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