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Ch. 2 - Water and Carbon: The Chemical Basis of Life
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All textbooksFreeman 8th EditionCh. 2 - Water and Carbon: The Chemical Basis of LifeProblem 8

Chapter 2, Problem 8

Consider the reaction between carbon dioxide and water to form carbonic acid: CO2(g)+H2O(l)⇌CH2O3(aq) In the ocean, carbonic acid immediately dissociates to form a proton and bicarbonate ion, as follows: CH2O3(aq)+H+(aq)⇌CHO3−(aq) If an underwater volcano bubbled additional CO2 into the ocean, would this sequence of reactions be driven to the left or the right? How would this affect the pH of the ocean?

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Hi everyone here we have a question asking us, how do you ant acids such as sodium bicarbonate give relief from gastroesophageal reflux disease. Gastroesophageal reflux disease happens when stomach acid is flowing into the esophagus. And antacids have base basic salts in them, which are magnesium, aluminum, calcium and sodium. So these bases are going to raise the gastric ph because of the neutralization reaction. And during this neutralization reaction, the acid and base react to form water and salt and combined hydrogen ions and hydroxide ions to generate water. So our answer here is c it increases the stomachs ph and neutralizes the stomach acid. Thank you for watching. Bye.
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Textbook Question

Consider the reaction between carbon dioxide and water to form carbonic acid (CH2O3):


CO2(𝑔)+H2O(𝑙)⇌CH2O3(𝑎𝑞)


In the ocean, carbonic acid immediately dissociates to form a proton and bicarbonate ion, as follows:


CH2O3(𝑎𝑞)⇌CHO3−(𝑎𝑞)+H+(𝑎𝑞)


As atmospheric CO2 increases, the ocean absorbs more of the gas. Would this sequence of reactions be driven to the left or the right? How would this affect the pH of the ocean?