How does the Ka value help in comparing the strength of different acids?

Given the Ka values for a polyprotic acid: Ka1 = 1.0 x 10^-3, Ka2 = 1.0 x 10^-5, Ka3 = 1.0 x 10^-7, which hydrogen is the strongest acid?

What is the formula to calculate pKa from Ka?

Given two acids with Ka values of 1.0 x 10^-3 and 1.0 x 10^-6, which is the stronger acid and why?

How would you determine the order of dissociation for a polyprotic acid with Ka values of 4.5 x 10^-2, 1.8 x 10^-4, and 3.2 x 10^-6?

For sulfuric acid (H2SO4), a diprotic acid, which statement is true regarding its dissociation constants?

Given the Ka values for a polyprotic acid: Ka1 = 2.5 x 10^-2, Ka2 = 1.5 x 10^-4, Ka3 = 3.0 x 10^-6, which hydrogen is the strongest acid?