Sulfur smells like rotten egg and is yellow...
Is there a picture for that
HA -----> H(+) + A(-)
0,2-x.........x..........x
100% - 99,4% = 0,6% = 0,006
x = 0,6%×0,2 = 0,006 × 0,2 = 0,0012
HA --------------> H(+) + A(-)
0,2-x.....................x..........x
0,2-0,0012.....0,0012..0,0012
0,1988.............0,0012..0,0012
K = [H+][A-]/[HA]
K = (0,0012)^2/0,1988
K = 0,0000072434
pKa = -logK= -log0,0000072434 = 5,14
:)
