Evolution of Carbon dioxide from Sodium bicarbonate and potassium hydroxide?

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SUMMARY

The discussion focuses on the evolution of carbon dioxide during the reaction between sodium bicarbonate (NaHCO3) and potassium hydroxide (KOH). The initial inquiry compares this reaction to known reactions involving dilute hydrochloric acid (HCl) and sodium bicarbonate, which produces carbon dioxide (CO2). Participants clarify that the reaction between NaHCO3 and KOH is a standard acid-base neutralization, where NaHCO3 acts as both an acid and a base, leading to the formation of sodium carbonate (Na2CO3) and water (H2O) along with CO2. The correct ionic equations for the disassociation of the reactants are emphasized for clarity.

PREREQUISITES
  • Understanding of acid-base reactions
  • Familiarity with ionic equations
  • Knowledge of sodium bicarbonate (NaHCO3) and potassium hydroxide (KOH)
  • Basic chemistry concepts regarding proton transfer
NEXT STEPS
  • Study the principles of acid-base neutralization reactions
  • Learn to write and balance ionic equations in chemical reactions
  • Explore the properties and reactions of bicarbonate ions (HCO3-)
  • Investigate the formation of carbon dioxide in various chemical reactions
USEFUL FOR

Chemistry students, educators, and anyone interested in understanding acid-base reactions and the behavior of bicarbonate ions in chemical processes.

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Evolution of Carbon dioxide from Sodium bicarbonate and potassium hydroxide??!

Hi!:smile:
Here’s a question my teacher asked me to solve about evolution of carbon dioxide,
We know that carbon dioxide is obtained by the action pf dilute acids on any metallic carbonate or bicarbonate e.g.
NaCO 3 + (dilute) HCl gives( I am using gives since I don’t know how to give an arrow:biggrin:)NaCl + H2O+CO2

NaHCO3 + (dilute) HCl gives 2NaCl + 2H2O+CO2 Therefore what would be the result of


NaHCO3 + KOH ?

Think it “might” be (just out of instinct:biggrin:)
NaHCO3 + KOH gives NaOH +KOH+H2O+CO2:?confused:

I don’t know whether it’s correct :rolleyes:or not and I would be very thankful if someone helps!:smile:
 
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Lol for some reason I find your equation cute :-p

The hydrogencarbonate ion HCO3- can both act as an acid and base. If it receives a proton to become H2CO3 (carbonic acid), it acts as a base. If it loses a proton to form carbonate ion CO32-, it acts as an acid.

Anyway this is a standard acid-base neutralization reaction. Write out the individual ionic equations for the acid and base disassociation first.

KOH -> K^{+} + OH^{-}
NaHCO_{3} -> NaCO_{3}^{-} + H^{+}

Next neutralize the H+ and the OH-, and then combine the remaining ions into a salt :smile:
 
Last edited:


1/2" said:
NaCO 3 + (dilute) HCl

For the record: this is not sodium carbonate.
 

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