SAT Subject Test Chemistry,10 edition

28 . The properties of light can best be explained by assuming that light is composed of:

I. Particles

II. Waves

III. Atoms

(A) I   only

(B) II  only

(C) I   and II

(D) II  and III

(E) I,  II, and III

29 . Which of the following aqueous solutions would have a pH greater than 7.0?

(A) 1.0 M   HCl

(B) 0.5 M   NH 4 Cl

(C) 0.25    M   HCN

(D) 0.1 M   KCN

(E) 1.0 M   H 2 SO 4

30 . Avogadro’s number is NOT equal to:

(A) the number  of  atoms   in  11.2    L   of  O 2     at  STP

(B) the number  of  atoms   in  1   mole    of  He  at  STP

(C) the number  of  electrons   in  96,500  coulombs

(D) the number  of      ions    in  1   L   of  0.5 M   sulfuric    acid

(E) None    of  the above

31 . Which of the following is NOT a state function?