Data 1
Pago No.
aishidy the diagram and calculate the liquid presene
at A, B, and C.
60CM
8
20cm
IA

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)

Is powdered sports drink ionic or covalent ? 10pts !

Answer asap need to be answered 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.