Carbonic acid

Though the oxygen which enters into the composition of the air forms about one-fifth, twenty-one parts in the hundred, it is its most important part it is to the oxygen that the air owes its property of supporting life and of sustaining the burning of combustible bodies when inflamed azote or nitrogen which enters into the composition of the air in the proportion of seventy-nine parts in a hundred is unfit for respiration and incapable of supporting combustion it seems to serve only to dilute the oxygen and thus mitigate the otherwise too irritating action of this gas By being breathed, the air changes its nature.

Its oxygen disappears little by little and is replaced by another fluid called carbonic acid gas.

This carbonic acid gas is composed of oxygen combined with carbon, derived from the blood.

Instead of being fit to support life, it acts as a poison on animals that breathe it for a short time and causes death.

On this account, by the respiration of animals, the air is gradually vitiated, and, if it were not renewed, would soon occasion asphyxia.

Carbonic acid gas, which extinguishes bodies in combustion in the same way as azote, is formed by the combustion of charcoal, also during the fermentation of wine and of beer, which makes it sparkling and frothy.

it is upon the action of this gas on the animal economy that the asphyxia produced by the vapor of charcoal depends as well as the greater number of accidents of the same sort which occur in mines caves wells and vats wherein wine or beer is fermenting in a grotto near naples this gas is continuously disengaged from the earth and give rise to phenomena which at first sight appear very singular and excite the admiration of the traveller when a man enters this cavern he experiences no inconvenience in his respiration but a dog following him very soon falls down in a state of asphyxia at his feet and would soon expire were he not speedily removed to the pure air this arises from the fact that the carbonic acid gas being much heavier than the air sinks down and forms upon the bottom of the cave a bed or stratum of about two feet thick now a dog that enters the grotto is necessarily plunged over his head into this mephitic gas and must necessarily become asphyxiate while a man who is very much taller only has the lower part of his body exposed to the action of the carbonic acid and breathes freely the air which floats above this remarkable place is known under the name of the grotto del cano or dog's grotto the air which escapes from the lungs is composed of the nitrogen inspired of a portion of oxygen not employed and of carbonic acid furnished by the act of respiration the expired air is also loaded with vapor of water

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For this reaction, Keq equals the product of the molar concentration of the carbonate ion and the molar concentration of the hydrogen ion, which is squared because hydrogen's coefficient in the balanced equation is two, all divided by the molar concentration of carbonic acid.

boring and throw a bunch of numbers around, what you need to see is that the quotient on the right must always yield the same number because it's a constant.

So, if the amount of CO2 in the atmosphere increases, leading to more H2CO3 in the Earth's water, the concentration of carbonate ions and or hydrogen ions must also increase so the total will

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