When carbon dioxide d in water it forms carbonic acid The more c dioxide the more a the solution becomes ie The pH d If distilled water pH 70 is exposed to air the carbon dioxide from the air will form dilute carbonic acid pH 5560 ID: 465876
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Slide1
Carbon dioxide, water and carbonic acid equilibriumSlide2
When carbon dioxide d_______ in water it forms carbonic acid
The more c______ dioxide the more a_______ the solution becomes
ie
. The pH d_________!
If distilled water (pH 7.0) is exposed to air the carbon dioxide from the air will form dilute carbonic acid (pH 5.5-6.0)Slide3
Equilibrium revisitedSlide4Slide5
At Equilibrium the rate of forward reaction is equal to the rate of backward reaction
We cant see this but it is happening at an atomic levelWe say it is “DYNAMIC”
LE CHATELIER’S PRINCIPLE
“
If a system at Equilibrium is disturbed, the system will adjust itself in the direction which
counteracts the disturbance”Slide6
When the reaction goes from
reactants
products
we say
SHIFT TO THE RIGHT
When the reaction goes from Reactants products
we saySHIFT TO THE LEFTSlide7
Temperature Change
Consider a closed
bottle of ginger beer
What happens if you heat the bottle?
As you increase the HEAT the system will SHIFT to the RIGHT to counteract the change
HEAT is considered a PRODUCT, shifting left uses up heat to lower the t________.
+ HEATSlide8
Concentration changeSlide9
Pressure ChangeSlide10
Other factors affecting Equilibrium
Q: What about if I added an ALKALI?A: The Alkali will r_______ with the a_____.
This lowers the concentration of the Carbonic acid
The EQUILIBRIUM will shift to the _________
More Carbon dioxide will be dissolved in the waterhttps://www.youtube.com/watch?v=
wlD_ImYQAgQWorksheet 5 KISS