1- Which of the following is true of a strong acid? a-The Ka value is small. b-The acid exists primarily in the form of

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1- Which of the following is true of a strong acid?
a-The Ka value is small.
b-The acid exists primarily in the form of molecules in
solution.
c- its molecules ionize completely in an aqueous solution.
d-The ionization equilibrium lies far to the left.
2-Which of the following is a property of a strong
acid?
a- Ka is small
b-It exists primarily in the form of molecules in solution.
c-It ionizes completely in aqueous solution.
d-Its ionization equilibrium lies far to the left.
3-Which of the following is the conjugate base of phosphoric
acid, H3PO4(aq)?
a-H2PO4(aq)
b-H3PO3(aq)
c-H2PO4- (aq)
d-HPO42- (aq)
4-Solve for Kb if Ka = 1 x 10–3.
a-103
b-1 x 10–7
c-10–11
d- 3
5-Perchloric acid, HClO4(aq), is a strong acid used
in the preparation of ammonium perchlorate, a rocket propellant.
Determine the pH of a 0.00450 mol/L perchloric acid solution.
a-0.45
b-2.35
c-3.00
d-4.50
6-Polyprotic acids have multiple Ka values. What statement best
describes this?
a-The first Ka is more significant
b-All the Ka values are significant for accuracy
c-Only the first two are significant
d-The first is generally very small and they get progressively
bigger, as protons become harder to remove.