Today in chemistry we did a lab. Andrew had taught us how to make
disappearing ink out of H2O(water), Naoh, and phenophalien. We first
measured .1g phenophalien. Then we put that into a 125ml
Erlenmeyer flask. Next added 10ml of ethanol and stirred that until it
dissolved. After that we added 100ml DI H2O. And lastly we added
(dropwise) 3m noah until it turned dark red. Andrew taught us that the
reason that the disappearing ink disappears is because CO2 goes into
the flask mixing with the H2O creating H2CO3 which is carbonic acid.
Oh + H+ equals H2O and it gets neutralized because the two H's cancel
each other out causing it to turn back into H2) and disappearing. This
also made me realize how similar the reactions that the disappearing
ink and ocean acidification has.
M = Molarity- A measure of concentration.
disappearing ink out of H2O(water), Naoh, and phenophalien. We first
measured .1g phenophalien. Then we put that into a 125ml
Erlenmeyer flask. Next added 10ml of ethanol and stirred that until it
dissolved. After that we added 100ml DI H2O. And lastly we added
(dropwise) 3m noah until it turned dark red. Andrew taught us that the
reason that the disappearing ink disappears is because CO2 goes into
the flask mixing with the H2O creating H2CO3 which is carbonic acid.
Oh + H+ equals H2O and it gets neutralized because the two H's cancel
each other out causing it to turn back into H2) and disappearing. This
also made me realize how similar the reactions that the disappearing
ink and ocean acidification has.
M = Molarity- A measure of concentration.