A basketball is inflated to 9.5 psi above atmospheric pressure of 14.7 psi, for a total pressure of 24.2 psi. The diameter of the basketball is 9.39inches. a.) What is the pressure of the air in the basketball in atmospheres? b.) what is the volume of the basketball in liters? The volume of a sphere is = (4/3)pi(r)^3

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.