Edexcel A Level Chemistry 2019 Paper 1 Unofficial Mark SchemeWatch
What did everyone write for the carbon dioxide buffer question?
Increase in h2co3 then applied to the buffer equation above, increase therefore further dissociation, of the h2co3 to hco3- and h+. hco3- is removed via the kidneys and thats about as far as i developed it
I know for sure u wont get many responses since this is the less popular exam board for chemistry so if anyone wants to talk about the exam feel free to pm
How did you find it today?
I thought it was a weird paper. Some really easy bits but again some tricky parts. For the H2C03 dissociation I talked about the c02 reacting with HCo2 minus to form further H2C03? Which shifted equilibrium to the left. This caused H2C03 to dissociate further to release C02 and H2O more readily to remove co2 that is toxic in the blood? I'm not sure. I think that might be wrong lol.