Question

Capturing CO2 Carbon dioxide can be removed from a gas stream by reacting it with potassium carbonate in the presence of water:

CO2(g) + K2CO3(s) + H2O(ℓ) → 2 KHCO3(s)

If a resting human exhales 36 mg CO2 in one breath, then how much potassium carbonate would be required to capture it all?

Also would the final answer need to be in mg as it started with 36 mg CO2?

Answer 1

CO₂ (g) + K₂ CO₂ (s) + H₂011) - 2 KHCO3(s) 44.0\gfmol moles of coge 36mg = 0.818 mmol Imol of CO2 requies Imol of kz L03 moles of Ke Loga 0.818 mmol mass of K2CO3 = 0.818 mond & 138.205 g/mol = 113.05 mg