Questions 52–54 refer to the following equation.
A chemist interested in the reactivity of iodine concentrates his study on the decomposition of
gaseous hydrogen iodide (Reaction 1).
2HI (g) H 2 (g) + I 2 (g)
Reaction 1
50 . Element is formed as a result of 3 β and 2 β– decays. Which of the following is the
parent element?
(A)
(B)
(C)
(D)
(E)
51 . What is the molecular formula of a compound with the empirical formula C 3 H 6 O 2 and a
mass of 148 amu?
(A) C 6 H 12 O 4
(B) C 2 H 6 O 2
(C) C 9 H 18 O 6
(D) C 2 H 3 O
(E) None of the above
52 . What is the equilibrium expression for Reaction 1?