Carbon Dioxide and Water: Lewis Base or Bronsted-Lowry Base?

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SUMMARY

The discussion centers on the classification of the reaction between carbon dioxide (CO2) and water (H2O) in forming carbonic acid (H2CO3). Participants debate whether water acts as a Lewis base by donating electrons or if carbon dioxide functions as a Bronsted-Lowry base by accepting a proton. The consensus indicates that in a balanced 1:1 reaction, typical of Bronsted-Lowry interactions, water produces hydroxide (OH-) or hydronium (H3O+), while the role of CO2 as a proton acceptor is contested. The conversation highlights the complexities of acid-base theory and the necessity for precise definitions in chemical reactions.

PREREQUISITES
  • Understanding of Bronsted-Lowry acid-base theory
  • Familiarity with Lewis acid-base definitions
  • Basic knowledge of chemical reaction balancing
  • Concept of hydronium (H3O+) and hydroxide (OH-) ions
NEXT STEPS
  • Research the differences between Lewis and Bronsted-Lowry acid-base theories
  • Study the formation and properties of carbonic acid (H2CO3)
  • Examine reaction mechanisms involving ethylene diamine and sulfuric acid
  • Explore examples of 1:1 balanced acid-base reactions in various contexts
USEFUL FOR

Chemistry students, educators, and professionals interested in acid-base reactions, particularly those exploring the nuances of Lewis and Bronsted-Lowry theories.

nothing123
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In the reaction of carbon dioxide and water to form carbonic acid, does water act as a lewis base because it donates a pair of electrons to carbon dioxide or does carbon dioxide act as a Bronsted-Lowry base because it accepts a proton from water?

Thanks.
 
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if the generic equation looks like this after its balanced, then its a bronsted lowry

(its balanced 1:1) and it makes a substance and something else, usually with OH or H3O+

if its not then it would look like this:

HX + XOH = H2O + Salt
 
link2110 said:
if the generic equation looks like this after its balanced, then its a bronsted lowry

(its balanced 1:1) and it makes a substance and something else, usually with OH or H3O+

if its not then it would look like this:

HX + XOH = H2O + Salt

Huh?
 
nothing123 said:
does carbon dioxide act as a Bronsted-Lowry base because it accepts a proton from water?

I don't think CO2 accepts a proton.
 
Borek said:
Huh?

what I am trying to say is that a bronsted lowry equations is balanced 1:1 and usually produces either OH or H3O
 
What about ethylene diamine reaction with sulfuric acid? Still 1:1? Produces OH- or H3+?

While what you wrote is right in many cases, it can't serve as a basis for understanding, as it is also wrong in many cases.
 

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