If a buffer system containing hydrofluoric acid and fluoride (pKg = 3.17) initially has a pH of 3.22 and base is added until a new pH of 4.69 is obtained, how has the ratio of fluoride to hydrofluoric acid changed?
OA from 1.12: 1 to 33.1 : 1
OB.
from 1:1.12 to 33.1:1
OC from 1: 1.12 to 1:33.1
OD.
from 1.12: 1 to 1:33.1

Yes i think so not 100 percent sure though

The activity series is shown in the attached picture. if the element is below the other, then you can displace the other. following the activity series as a guide, the reactions are as follows: nickel and aluminum chloride3 ni + 2 alcl₃  → 3 nicl₂ + 2 albarium and copper bromideba + cubr  →  no reaction because cu is less oxidizable than bapotassium nitrate and aluminum3 kno₃ + al  → al(no₃)₃ + 3 ksodium phosphate and zincnaso₄ + zn  → znso₄ + na

Show an image of the data (˵¯͒ བ¯͒˵)

Your answer is a just took the test