The Bohr effect refers to A) the decrease in affinity of Hb for O2 when the pH goes down B) the decrease in affinity of Hb for O2 when the pH goes up C) the increase in the affinity of Hb for O2 when the O2 concentration goes up D) the decrease in affinity of Hb for O2 when the BPG concentration goes up E) the decrease in affinity of Hb for O2 when the BPG concentration goes down

Answer asap need by wednesday morning explain how a buffer works, using an ethanoic acid/sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.

8. what happens to matter during a chemical reaction

Why is the bottom layer of a trophic pyrimid the